diff --git a/internal/domain/order.go b/internal/domain/order.go
deleted file mode 100644
index 97f10ec..0000000
--- a/internal/domain/order.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package domain
-
-type OrderStatus int64
-
-func (o *OrderStatus) ToInt64() int64 {
-	return int64(*o)
-}
-
-const (
-	OrderStatusCreated         OrderStatus = 0  // 建立訂單
-	OrderStatusFailed          OrderStatus = 1  // 建單失敗
-	OrderStatusReviewing       OrderStatus = 2  // 審核中
-	OrderStatusPaying          OrderStatus = 3  // 付款中
-	OrderStatusPaid            OrderStatus = 4  // 已付款
-	OrderStatusPendingTransfer OrderStatus = 5  // 已付款待轉帳
-	OrderStatusDisputing       OrderStatus = 6  // 申訴中
-	OrderStatusCompleted       OrderStatus = 7  // 交易完成
-	OrderStatusFailedTrade     OrderStatus = 8  // 交易失敗
-	OrderStatusCancelled       OrderStatus = 9  // 交易取消
-	OrderStatusAbnormal        OrderStatus = 10 // 交易異常
-	OrderStatusTimeout         OrderStatus = 11 // 交易超時
-)
-
-type OrderType int64
-
-const (
-	OrderTypeTest OrderType = 0 // 測試訂單
-)
-
-func (o *OrderType) ToInt() int {
-	return int(*o)
-}
diff --git a/internal/domain/order/order_status.go b/internal/domain/order/order_status.go
new file mode 100644
index 0000000..2781963
--- /dev/null
+++ b/internal/domain/order/order_status.go
@@ -0,0 +1,25 @@
+package order
+
+// Status 表示訂單狀態
+type Status int64
+
+// ToInt64 將訂單狀態轉為 int64
+func (s Status) ToInt64() int64 {
+	return int64(s)
+}
+
+// 訂單狀態常量
+const (
+	Created          Status = iota // 訂單已建立
+	Failed                         // 建單失敗
+	UnderReview                    // 審核中
+	Processing                     // 付款中
+	Paid                           // 已付款
+	AwaitingTransfer               // 待轉帳
+	InDispute                      // 申訴中
+	Completed                      // 交易完成
+	FailedTrade                    // 交易失敗
+	Cancelled                      // 交易取消
+	Abnormal                       // 交易異常
+	TimedOut                       // 交易超時
+)
diff --git a/internal/domain/order/order_type.go b/internal/domain/order/order_type.go
new file mode 100644
index 0000000..e5de39a
--- /dev/null
+++ b/internal/domain/order/order_type.go
@@ -0,0 +1,15 @@
+package order
+
+// Type 表示訂單類型
+type Type int64
+
+// ToInt 將訂單類型轉為 int
+func (t Type) ToInt() int {
+	return int(t)
+}
+
+// 訂單類型常量
+
+const (
+	TestType Type = iota // 測試訂單
+)
diff --git a/internal/domain/repository/user_wallet.go b/internal/domain/repository/user_wallet.go
index d1b818a..f2ccee5 100644
--- a/internal/domain/repository/user_wallet.go
+++ b/internal/domain/repository/user_wallet.go
@@ -1,7 +1,7 @@
 package repository
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"app-cloudep-trade-service/internal/model"
 	"context"
 
@@ -13,9 +13,9 @@ import (
 // UserWalletOperator 針對使用者的錢包基本操作接口
 type UserWalletOperator interface {
 	// Balances 取得多種類別餘額
-	Balances(ctx context.Context, kind []domain.WalletType, opts ...WalletOperatorOption) ([]model.Wallet, error)
+	Balances(ctx context.Context, balanceType []wallet.BalanceType, opts ...WalletOperatorOption) ([]model.Wallet, error)
 	// LocalBalance 取得本地錢包的數額
-	LocalBalance(kind domain.WalletType) decimal.Decimal
+	LocalBalance(balanceType wallet.BalanceType) decimal.Decimal
 	// GetBalancesByID 取得錢包的數額 ByID
 	GetBalancesByID(ctx context.Context, ids []int64, opts ...WalletOperatorOption) ([]model.Wallet, error)
 }
diff --git a/internal/domain/repository/wallet.go b/internal/domain/repository/wallet.go
index 730fedc..6ee68c4 100644
--- a/internal/domain/repository/wallet.go
+++ b/internal/domain/repository/wallet.go
@@ -1,7 +1,7 @@
 package repository
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"app-cloudep-trade-service/internal/model"
 	"context"
 
@@ -22,9 +22,9 @@ type WalletRepository interface {
 
 // BalanceReq 取得全部的，因為一個人錢包種類的不會太多，故全撈
 type BalanceReq struct {
-	UID      []string
-	Currency []string
-	Kind     []domain.WalletType
+	UID         []string
+	Currency    []string
+	BalanceType []wallet.BalanceType
 }
 
 type Option func() sqlx.SqlConn
diff --git a/internal/domain/repository/wallet_option.go b/internal/domain/repository/wallet_option.go
index 39ac50c..fdd926e 100644
--- a/internal/domain/repository/wallet_option.go
+++ b/internal/domain/repository/wallet_option.go
@@ -1,7 +1,7 @@
 package repository
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/wallet"
 
 	"github.com/zeromicro/go-zero/core/stores/sqlx"
 
@@ -12,12 +12,12 @@ import (
 type WalletOperatorOption func(*WalletOptions)
 
 type WalletOptions struct {
-	WithLock bool
-	OrderID  string
-	Amount   decimal.Decimal
-	Kind     domain.WalletType
-	Business domain.BusinessName
-	Tx       *sqlx.SqlConn
+	WithLock    bool
+	OrderID     string
+	Amount      decimal.Decimal
+	BalanceType wallet.BalanceType
+	Business    wallet.BusinessLogic
+	Tx          *sqlx.SqlConn
 }
 
 // ApplyOptions 將多個 WalletOperatorOption 應用到一個 walletOptions 中
@@ -48,13 +48,13 @@ func WithAmount(amount decimal.Decimal) WalletOperatorOption {
 	}
 }
 
-func WithKind(kind domain.WalletType) WalletOperatorOption {
+func WithKind(balanceType wallet.BalanceType) WalletOperatorOption {
 	return func(opts *WalletOptions) {
-		opts.Kind = kind
+		opts.BalanceType = balanceType
 	}
 }
 
-func WithBusiness(business domain.BusinessName) WalletOperatorOption {
+func WithBusiness(business wallet.BusinessLogic) WalletOperatorOption {
 	return func(opts *WalletOptions) {
 		opts.Business = business
 	}
diff --git a/internal/domain/usecase/order.go b/internal/domain/usecase/order.go
index 6d1db4f..72213e5 100644
--- a/internal/domain/usecase/order.go
+++ b/internal/domain/usecase/order.go
@@ -1,7 +1,7 @@
 package usecase
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/order"
 	"context"
 
 	"github.com/shopspring/decimal"
@@ -38,7 +38,7 @@ type ModifyOrderQuery struct {
 // CancelOrderQuery 1.建單失敗 9.交易取消 10.交易異常
 type CancelOrderQuery struct {
 	BusinessID string
-	Status     domain.OrderStatus
+	Status     order.Status
 }
 
 // DeleteOrderQuery 刪除訂單（軟刪除）
@@ -52,42 +52,42 @@ type GetOrderQuery struct {
 }
 
 type GetOrderResp struct {
-	BusinessID           string             // 訂單業務流水號
-	OrderType            domain.OrderType   `json:"order_type"`                         // 訂單類型
-	OrderStatus          domain.OrderStatus `json:"order_status"`                       // 訂單狀態
-	Brand                string             `json:"brand"`                              // 下單平台
-	OrderUID             string             `json:"order_uid"`                          // 下單用戶 UID
-	ReferenceID          string             `json:"reference_id"`                       // 訂單來源
-	Count                string             `json:"count"`                              // 訂單數量 (decimal to string)
-	OrderFee             string             `json:"order_fee"`                          // 訂單手續費 (decimal to string)
-	Amount               string             `json:"amount"`                             // 單價 (decimal to string)
-	ReferenceBrand       *string            `json:"reference_brand,omitempty"`          // 訂單來源平台
-	ReferenceUID         *string            `json:"reference_uid,omitempty"`            // 訂單來源用戶 UID
-	WalletStatus         *int64             `json:"wallet_status,omitempty"`            // 交易金額狀態
-	ThreePartyStatus     *int64             `json:"three_party_status,omitempty"`       // 三方請求狀態
-	DirectionType        *int64             `json:"direction_type,omitempty"`           // 交易方向
-	CryptoType           *string            `json:"crypto_type,omitempty"`              // 交易幣種
-	ThirdPartyFee        *string            `json:"third_party_fee,omitempty"`          // 第三方手續費 (decimal to string)
-	CryptoToUsdtRate     *string            `json:"crypto_to_usdt_rate,omitempty"`      // 交易幣種對 USDT 匯率 (decimal to string)
-	FiatToUsdRate        *string            `json:"fiat_to_usd_rate,omitempty"`         // 法幣對 USD 匯率 (decimal to string)
-	FeeCryptoToUsdtRate  *string            `json:"fee_crypto_to_usdt_rate,omitempty"`  // 手續費幣種對 USDT 匯率 (decimal to string)
-	UsdtToCryptoTypeRate *string            `json:"usdt_to_crypto_type_rate,omitempty"` // USDT 對交易幣種匯率 (decimal to string)
-	PaymentFiat          *string            `json:"payment_fiat,omitempty"`             // 支付法幣
-	PaymentUnitPrice     *string            `json:"payment_unit_price,omitempty"`       // crypto 單價 (decimal to string)
-	PaymentTemplateID    *string            `json:"payment_template_id,omitempty"`      // 支付方式配置 ID
-	OrderArrivalTime     *int64             `json:"order_arrival_time,omitempty"`       // 訂單到帳時間
-	OrderPaymentTime     *int64             `json:"order_payment_time,omitempty"`       // 訂單付款時間
-	UnpaidTimeoutSecond  *int64             `json:"unpaid_timeout_second,omitempty"`    // 支付期限秒數
-	ChainType            *string            `json:"chain_type,omitempty"`               // 主網類型
-	TxHash               *string            `json:"tx_hash,omitempty,omitempty"`        // 交易哈希
-	FromAddress          *string            `json:"from_address,omitempty,omitempty"`   // 來源地址
-	ToAddress            *string            `json:"to_address,omitempty,omitempty"`     // 目標地址
-	ChainFee             *string            `json:"chain_fee,omitempty"`                // 鏈上交易手續費 (decimal to string)
-	ChainFeeCrypto       *string            `json:"chain_fee_crypto,omitempty"`         // 鏈上手續費使用幣別
-	Memo                 *string            `json:"memo,omitempty"`                     // 鏈上備註
-	OrderNote            *string            `json:"order_note,omitempty"`               // 訂單交易備註
-	CreateTime           int64              `json:"create_time,omitempty"`              // 建立時間
-	UpdateTime           int64              `json:"update_time,omitempty"`              // 更新時間
+	BusinessID           string       // 訂單業務流水號
+	OrderType            order.Type   `json:"order_type"`                         // 訂單類型
+	OrderStatus          order.Status `json:"order_status"`                       // 訂單狀態
+	Brand                string       `json:"brand"`                              // 下單平台
+	OrderUID             string       `json:"order_uid"`                          // 下單用戶 UID
+	ReferenceID          string       `json:"reference_id"`                       // 訂單來源
+	Count                string       `json:"count"`                              // 訂單數量 (decimal to string)
+	OrderFee             string       `json:"order_fee"`                          // 訂單手續費 (decimal to string)
+	Amount               string       `json:"amount"`                             // 單價 (decimal to string)
+	ReferenceBrand       *string      `json:"reference_brand,omitempty"`          // 訂單來源平台
+	ReferenceUID         *string      `json:"reference_uid,omitempty"`            // 訂單來源用戶 UID
+	WalletStatus         *int64       `json:"wallet_status,omitempty"`            // 交易金額狀態
+	ThreePartyStatus     *int64       `json:"three_party_status,omitempty"`       // 三方請求狀態
+	DirectionType        *int64       `json:"direction_type,omitempty"`           // 交易方向
+	CryptoType           *string      `json:"crypto_type,omitempty"`              // 交易幣種
+	ThirdPartyFee        *string      `json:"third_party_fee,omitempty"`          // 第三方手續費 (decimal to string)
+	CryptoToUsdtRate     *string      `json:"crypto_to_usdt_rate,omitempty"`      // 交易幣種對 USDT 匯率 (decimal to string)
+	FiatToUsdRate        *string      `json:"fiat_to_usd_rate,omitempty"`         // 法幣對 USD 匯率 (decimal to string)
+	FeeCryptoToUsdtRate  *string      `json:"fee_crypto_to_usdt_rate,omitempty"`  // 手續費幣種對 USDT 匯率 (decimal to string)
+	UsdtToCryptoTypeRate *string      `json:"usdt_to_crypto_type_rate,omitempty"` // USDT 對交易幣種匯率 (decimal to string)
+	PaymentFiat          *string      `json:"payment_fiat,omitempty"`             // 支付法幣
+	PaymentUnitPrice     *string      `json:"payment_unit_price,omitempty"`       // crypto 單價 (decimal to string)
+	PaymentTemplateID    *string      `json:"payment_template_id,omitempty"`      // 支付方式配置 ID
+	OrderArrivalTime     *int64       `json:"order_arrival_time,omitempty"`       // 訂單到帳時間
+	OrderPaymentTime     *int64       `json:"order_payment_time,omitempty"`       // 訂單付款時間
+	UnpaidTimeoutSecond  *int64       `json:"unpaid_timeout_second,omitempty"`    // 支付期限秒數
+	ChainType            *string      `json:"chain_type,omitempty"`               // 主網類型
+	TxHash               *string      `json:"tx_hash,omitempty,omitempty"`        // 交易哈希
+	FromAddress          *string      `json:"from_address,omitempty,omitempty"`   // 來源地址
+	ToAddress            *string      `json:"to_address,omitempty,omitempty"`     // 目標地址
+	ChainFee             *string      `json:"chain_fee,omitempty"`                // 鏈上交易手續費 (decimal to string)
+	ChainFeeCrypto       *string      `json:"chain_fee_crypto,omitempty"`         // 鏈上手續費使用幣別
+	Memo                 *string      `json:"memo,omitempty"`                     // 鏈上備註
+	OrderNote            *string      `json:"order_note,omitempty"`               // 訂單交易備註
+	CreateTime           int64        `json:"create_time,omitempty"`              // 建立時間
+	UpdateTime           int64        `json:"update_time,omitempty"`              // 更新時間
 }
 
 type GetOrderListReq struct {
@@ -98,7 +98,7 @@ type GetOrderListReq struct {
 	ReferenceUID  string
 	BusinessID    string
 	UID           string
-	OrderType     domain.OrderType
+	OrderType     order.Type
 	DirectionType []int64
 	OrderStatus   []int64
 
@@ -128,16 +128,16 @@ type ListOrderResp struct {
 
 type CreateOrderReq struct {
 	BusinessID    string
-	OrderType     domain.OrderType   // 訂單類型
-	OrderStatus   domain.OrderStatus // 訂單狀態
-	Brand         string             // 下單平台
-	OrderUID      string             // 下單用戶 UID
-	ReferenceID   string             // 訂單來源
-	Count         decimal.Decimal    // 訂單數量
-	OrderFee      decimal.Decimal    // 訂單手續費
-	Amount        decimal.Decimal    // 單價
-	WalletStatus  int64              // 交易金額狀態
-	DirectionType int64              // 交易方向
+	OrderType     order.Type      // 訂單類型
+	OrderStatus   order.Status    // 訂單狀態
+	Brand         string          // 下單平台
+	OrderUID      string          // 下單用戶 UID
+	ReferenceID   string          // 訂單來源
+	Count         decimal.Decimal // 訂單數量
+	OrderFee      decimal.Decimal // 訂單手續費
+	Amount        decimal.Decimal // 單價
+	WalletStatus  int64           // 交易金額狀態
+	DirectionType int64           // 交易方向
 	// 以上為必要欄位，下面是區塊鏈時才需要
 	ReferenceBrand       *string          // 訂單來源平台
 	ReferenceUID         *string          // 訂單來源用戶 UID
diff --git a/internal/domain/usecase/wallet.go b/internal/domain/usecase/wallet.go
index b5a1b37..9264924 100644
--- a/internal/domain/usecase/wallet.go
+++ b/internal/domain/usecase/wallet.go
@@ -1,7 +1,7 @@
 package usecase
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"context"
 
 	"github.com/shopspring/decimal"
@@ -49,17 +49,17 @@ type WalletUseCase interface {
 
 // Transaction 交易
 type Transaction struct {
-	OrderID       string              // 交易訂單
-	UID           string              // 交易發起人
-	ToUID         string              // 交易接收人
-	Currency      string              // 幣別
-	Amount        decimal.Decimal     // 交易金額
-	BeforeBalance decimal.Decimal     // 交易前餘額
-	Type          domain.TxType       // 交易種類
-	BusinessType  domain.BusinessName // 商業種類
-	Brand         string              // 轉帳平台
-	From          domain.WalletType   // 從哪種錢包類型
-	To            domain.WalletType   // 到哪種錢包類型
+	OrderID       string                 // 交易訂單
+	UID           string                 // 交易發起人
+	ToUID         string                 // 交易接收人
+	Currency      string                 // 幣別
+	Amount        decimal.Decimal        // 交易金額
+	BeforeBalance decimal.Decimal        // 交易前餘額
+	Type          wallet.TransactionType // 交易種類
+	BusinessType  wallet.BusinessLogic   // 商業種類
+	Brand         string                 // 轉帳平台
+	From          wallet.BalanceType     // 從哪種錢包類型
+	To            wallet.BalanceType     // 到哪種錢包類型
 }
 
 type BalanceReq struct {
diff --git a/internal/domain/wallet.go b/internal/domain/wallet/wallet.go
similarity index 71%
rename from internal/domain/wallet.go
rename to internal/domain/wallet/wallet.go
index 0bd0cbe..c17f0a2 100644
--- a/internal/domain/wallet.go
+++ b/internal/domain/wallet/wallet.go
@@ -1,8 +1,8 @@
-package domain
+package wallet
 
-type WalletStatus int64
+type Status int64
 
-func (o *WalletStatus) ToInt() int {
+func (o *Status) ToInt() int {
 	return int(*o)
 }
 
diff --git a/internal/domain/wallet/wallet_business_name.go b/internal/domain/wallet/wallet_business_name.go
new file mode 100644
index 0000000..c455c41
--- /dev/null
+++ b/internal/domain/wallet/wallet_business_name.go
@@ -0,0 +1,52 @@
+package wallet
+
+// ===================商業邏輯類型===================
+
+type BusinessLogic string
+
+// 定義商業邏輯名稱
+const (
+	// NoLogic 無商業邏輯
+	NoLogic BusinessLogic = ""
+	// OrderLogic 訂單相關業務邏輯
+	OrderLogic BusinessLogic = "order"
+	// SystemTransferLogic 系統劃轉邏輯
+	SystemTransferLogic BusinessLogic = "system_transfer"
+)
+
+// 定義商業邏輯類型
+const (
+	// NoLogicType 無商業邏輯類型
+	NoLogicType int8 = iota
+	// OrderLogicType 訂單業務邏輯類型
+	OrderLogicType
+	// SystemTransferLogicType 系統劃轉業務邏輯類型
+	SystemTransferLogicType
+)
+
+// 定義名稱和類型之間的映射
+var logicNameToType = map[BusinessLogic]int8{
+	OrderLogic:          OrderLogicType,
+	SystemTransferLogic: SystemTransferLogicType,
+}
+
+var logicTypeToName = map[int8]BusinessLogic{
+	OrderLogicType:          OrderLogic,
+	SystemTransferLogicType: SystemTransferLogic,
+}
+
+// ToInt8 將 BusinessLogic 轉換為對應的 int8 類型
+func (b BusinessLogic) ToInt8() int8 {
+	if val, ok := logicNameToType[b]; ok {
+		return val
+	}
+	return NoLogicType
+}
+
+// LogicTypeToName 將 int8 類型轉換為對應的 BusinessLogic 名稱
+func LogicTypeToName(b int8) BusinessLogic {
+	if val, ok := logicTypeToName[b]; ok {
+		return val
+	}
+	return NoLogic
+}
diff --git a/internal/domain/wallet/wallet_tx.go b/internal/domain/wallet/wallet_tx.go
new file mode 100644
index 0000000..eaccfe4
--- /dev/null
+++ b/internal/domain/wallet/wallet_tx.go
@@ -0,0 +1,49 @@
+package wallet
+
+// ===================交易類型===================
+
+type TransactionType int64
+
+// 定義交易類型
+const (
+	// Deposit 增加可用餘額的充值交易
+	Deposit TransactionType = iota + 1
+
+	// Withdraw 減少可用餘額的提現交易
+	Withdraw
+
+	// Freeze 將可用餘額轉入凍結餘額的凍結交易
+	Freeze
+
+	// Unfreeze 減少凍結餘額的解凍交易
+	Unfreeze
+
+	// RollbackFreeze 回滾凍結：減少凍結餘額並恢復至可用餘額，不指定金額
+	RollbackFreeze
+
+	// Unconfirmed 限制交易：減少凍結餘額並增加他人限制餘額
+	Unconfirmed
+
+	// CancelFreeze 取消凍結：減少凍結餘額並恢復至可用餘額，允許指定金額
+	CancelFreeze
+
+	// DepositToUnconfirmed 增加限制餘額的充值交易
+	DepositToUnconfirmed
+
+	// AppendFreeze 追加凍結：減少可用餘額並增加凍結餘額
+	AppendFreeze
+
+	// RollbackFreezeToAvailable 回滾凍結：指定金額回滾凍結餘額並增加至可用餘額
+	RollbackFreezeToAvailable
+
+	// PlatformDistribution 平台分發交易
+	PlatformDistribution
+
+	// SystemTransfer 系統劃轉交易
+	SystemTransfer
+)
+
+// ToInt 將交易類型轉換為 int64
+func (t TransactionType) ToInt() int64 {
+	return int64(t)
+}
diff --git a/internal/domain/wallet/wallet_type.go b/internal/domain/wallet/wallet_type.go
new file mode 100644
index 0000000..255619c
--- /dev/null
+++ b/internal/domain/wallet/wallet_type.go
@@ -0,0 +1,58 @@
+package wallet
+
+// ===================錢包餘額類型===================
+
+// BalanceType 表示錢包餘額的類型
+type BalanceType int64
+
+// 錢包餘額類型
+const (
+	// AvailableBalanceType 表示可動用的餘額
+	AvailableBalanceType BalanceType = iota + 1
+
+	// FrozenBalanceType 表示在交易過程中凍結的餘額
+	FrozenBalanceType
+
+	// PendingBalanceType 表示已提交但尚未確認完成的交易餘額
+	PendingBalanceType
+
+	// ContractAvailableBalanceType 表示合約或交易可用的餘額
+	ContractAvailableBalanceType
+
+	// ContractFrozenBalanceType 表示合約或交易凍結的餘額
+	ContractFrozenBalanceType
+)
+
+// balanceTypeToName 將餘額類型映射到其名稱
+var balanceTypeToName = map[BalanceType]string{
+	AvailableBalanceType:         "available",
+	FrozenBalanceType:            "frozen",
+	PendingBalanceType:           "pending",
+	ContractAvailableBalanceType: "contract_available",
+	ContractFrozenBalanceType:    "contract_frozen",
+}
+
+// nameToBalanceType 將名稱映射到餘額類型
+var nameToBalanceType = map[string]BalanceType{
+	"available":          AvailableBalanceType,
+	"frozen":             FrozenBalanceType,
+	"pending":            PendingBalanceType,
+	"contract_available": ContractAvailableBalanceType,
+	"contract_frozen":    ContractFrozenBalanceType,
+}
+
+// Name 返回餘額類型的名稱
+func (b BalanceType) Name() string {
+	return balanceTypeToName[b]
+}
+
+// GetBalanceTypeByName 根據名稱返回對應的餘額類型
+func GetBalanceTypeByName(name string) BalanceType {
+	return nameToBalanceType[name]
+}
+
+// AllBalanceTypes 包含目前所有的錢包餘額類型
+var AllBalanceTypes = []BalanceType{
+	AvailableBalanceType, FrozenBalanceType, PendingBalanceType,
+	ContractAvailableBalanceType, ContractFrozenBalanceType,
+}
diff --git a/internal/domain/wallet_business_name.go b/internal/domain/wallet_business_name.go
deleted file mode 100644
index ab401e0..0000000
--- a/internal/domain/wallet_business_name.go
+++ /dev/null
@@ -1,52 +0,0 @@
-package domain
-
-// ===================交易商業邏輯種類===================
-
-type BusinessName string
-
-const (
-	// NoBusinessName 非商業邏輯
-	NoBusinessName BusinessName = ""
-	// OrderBusinessTypeBusinessName order業務邏輯
-	OrderBusinessTypeBusinessName BusinessName = "order"
-	// SystemTransferBusinessTypeBusinessName 系統劃轉
-	SystemTransferBusinessTypeBusinessName BusinessName = "system_transfer"
-)
-
-const (
-	// NoBusinessType 非商業邏輯
-	NoBusinessType int8 = iota
-	// OrderBusinessTypeBusinessType order 業務邏輯
-	OrderBusinessTypeBusinessType
-	// SystemTransferBusinessTypeBusinessType 系統劃轉
-	SystemTransferBusinessTypeBusinessType
-)
-
-// 定義兩個map用於名稱和類型的相互映射
-var nameToBusinessType = map[BusinessName]int8{
-	OrderBusinessTypeBusinessName:          OrderBusinessTypeBusinessType,
-	SystemTransferBusinessTypeBusinessName: SystemTransferBusinessTypeBusinessType,
-}
-
-var businessTypeToName = map[int8]BusinessName{
-	OrderBusinessTypeBusinessType:          OrderBusinessTypeBusinessName,
-	SystemTransferBusinessTypeBusinessType: SystemTransferBusinessTypeBusinessName,
-}
-
-// ToINT8 converts BusinessName to its corresponding int8 type
-func (b BusinessName) ToINT8() int8 {
-	if val, ok := nameToBusinessType[b]; ok {
-		return val
-	}
-
-	return NoBusinessType
-}
-
-// BusinessTypeToString converts an int8 type to its corresponding BusinessName
-func BusinessTypeToString(b int8) BusinessName {
-	if val, ok := businessTypeToName[b]; ok {
-		return val
-	}
-
-	return NoBusinessName
-}
diff --git a/internal/domain/wallet_tx.go b/internal/domain/wallet_tx.go
deleted file mode 100644
index a3a85ed..0000000
--- a/internal/domain/wallet_tx.go
+++ /dev/null
@@ -1,48 +0,0 @@
-package domain
-
-// ===================交易種類===================
-
-type TxType int64
-
-// 交易類型
-const (
-	// TxDepositType 充值(增加可用餘額)
-	TxDepositType TxType = iota + 1
-
-	// TxWithdrawType 提現(減少可用餘額)
-	TxWithdrawType
-
-	// TxFreezeType 凍結(減少可用餘額，加在凍結餘額)
-	TxFreezeType
-
-	// TxUnFreezeType 解凍(減少凍結餘額)
-	TxUnFreezeType
-
-	// TxRollbackFreezeType rollback凍結(減少凍結餘額，加回可用餘額，不可指定金額)
-	TxRollbackFreezeType
-
-	// TxUnconfirmedType 限制(減少凍結餘額，加別人限制餘額)
-	TxUnconfirmedType
-
-	// TxCancelFreezeType 取消凍結(減少凍結餘額，加回可用餘額，，可指定金額)
-	TxCancelFreezeType
-
-	// TxDepositUnconfirmedType 充值(增加限制餘額)
-	TxDepositUnconfirmedType
-
-	// TxAppendFreezeType 追加凍結(減少可用餘額，加在凍結餘額)
-	TxAppendFreezeType
-
-	// TxRollbackFreezeAddAvailableType rollback凍結(rollback凍結餘額，指定金額加回可用餘額)
-	TxRollbackFreezeAddAvailableType
-
-	// TxDistributionType 平台分發
-	TxDistributionType
-
-	// TxSystemTransfer 系統劃轉
-	TxSystemTransfer
-)
-
-func (t TxType) ToInt() int64 {
-	return int64(t)
-}
diff --git a/internal/domain/wallet_type.go b/internal/domain/wallet_type.go
deleted file mode 100644
index 78ed2f8..0000000
--- a/internal/domain/wallet_type.go
+++ /dev/null
@@ -1,54 +0,0 @@
-package domain
-
-// ===================錢包金額種類===================
-
-type WalletType int64
-
-// 錢包種類
-const (
-	// WalletAvailableType 錢包可動用的金額
-	WalletAvailableType WalletType = iota + 1
-
-	// WalletFreezeType 交易過程，錢包被凍結的金額
-	WalletFreezeType
-
-	// WalletUnconfirmedType 已提交的交易但還未確認完成交易的金額
-	WalletUnconfirmedType
-
-	// WalletContractAvailableType 合約/交易可用餘額
-	WalletContractAvailableType
-
-	// WalletContractFreezeType 合約/交易凍結餘額
-	WalletContractFreezeType
-)
-
-var walletTypeToName = map[WalletType]string{
-	WalletAvailableType:         "available",
-	WalletFreezeType:            "freeze",
-	WalletUnconfirmedType:       "unconfirmed",
-	WalletContractAvailableType: "contract_available",
-	WalletContractFreezeType:    "contract_freeze",
-}
-
-var nameToWalletType = map[string]WalletType{
-	"available":          WalletAvailableType,
-	"freeze":             WalletFreezeType,
-	"unconfirmed":        WalletUnconfirmedType,
-	"contract_available": WalletContractAvailableType,
-	"contract_freeze":    WalletContractFreezeType,
-}
-
-// Name returns the name associated with the WalletType.
-func (w WalletType) Name() string {
-	return walletTypeToName[w]
-}
-
-// GetWalletTypeByName returns the WalletType associated with the given name.
-func GetWalletTypeByName(name string) WalletType {
-	return nameToWalletType[name]
-}
-
-var AllWalletType = []WalletType{
-	WalletAvailableType, WalletFreezeType, WalletUnconfirmedType,
-	WalletContractAvailableType, WalletContractFreezeType,
-}
diff --git a/internal/logic/orderservice/cancel_order_logic.go b/internal/logic/orderservice/cancel_order_logic.go
index cd499a6..fbfed79 100644
--- a/internal/logic/orderservice/cancel_order_logic.go
+++ b/internal/logic/orderservice/cancel_order_logic.go
@@ -1,7 +1,7 @@
 package orderservicelogic
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/order"
 	"app-cloudep-trade-service/internal/domain/usecase"
 	"context"
 
@@ -46,7 +46,7 @@ func (l *CancelOrderLogic) CancelOrder(in *trade.CancelOrderReq) (*trade.OKResp,
 
 	err := l.svcCtx.OrderUseCase.CancelOrder(l.ctx, usecase.CancelOrderQuery{
 		BusinessID: in.GetBusinessId(),
-		Status:     domain.OrderStatus(in.GetStatus()),
+		Status:     order.Status(in.GetStatus()),
 	})
 	if err != nil {
 		return nil, err
diff --git a/internal/logic/orderservice/create_order_logic.go b/internal/logic/orderservice/create_order_logic.go
index 3b38855..8bac6d8 100644
--- a/internal/logic/orderservice/create_order_logic.go
+++ b/internal/logic/orderservice/create_order_logic.go
@@ -2,7 +2,7 @@ package orderservicelogic
 
 import (
 	"app-cloudep-trade-service/gen_result/pb/trade"
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/order"
 	"app-cloudep-trade-service/internal/domain/usecase"
 	"app-cloudep-trade-service/internal/svc"
 	"context"
@@ -169,8 +169,8 @@ func buildCreateOrderReq(in *trade.CreateOrderReq) *createOrderReq {
 func toCreateOrderUseCase(req *createOrderReq) usecase.CreateOrderReq {
 	return usecase.CreateOrderReq{
 		BusinessID:           req.BusinessID,
-		OrderType:            domain.OrderType(req.OrderType),
-		OrderStatus:          domain.OrderStatus(req.OrderStatus),
+		OrderType:            order.Type(req.OrderType),
+		OrderStatus:          order.Status(req.OrderStatus),
 		Brand:                req.Brand,
 		OrderUID:             req.OrderUID,
 		ReferenceID:          req.ReferenceID,
diff --git a/internal/logic/orderservice/list_order_logic.go b/internal/logic/orderservice/list_order_logic.go
index b68bfcd..c8be244 100644
--- a/internal/logic/orderservice/list_order_logic.go
+++ b/internal/logic/orderservice/list_order_logic.go
@@ -1,7 +1,7 @@
 package orderservicelogic
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/order"
 	"app-cloudep-trade-service/internal/domain/usecase"
 	"context"
 
@@ -61,7 +61,7 @@ func toGetOrderListReq(req *trade.ListOrderReq) usecase.GetOrderListReq {
 		ReferenceUID:          req.ReferenceUid,
 		BusinessID:            req.BusinessId,
 		UID:                   req.Uid,
-		OrderType:             domain.OrderType(req.OrderType),
+		OrderType:             order.Type(req.OrderType),
 		DirectionType:         i32To64(req.DirectionType),
 		OrderStatus:           i32To64(req.OrderStatus),
 		StartCreateTime:       req.StartCreateTime,
diff --git a/internal/model/mongo/order_model.go b/internal/model/mongo/order_model.go
index 2da7c31..9855b9e 100644
--- a/internal/model/mongo/order_model.go
+++ b/internal/model/mongo/order_model.go
@@ -1,7 +1,7 @@
 package model
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/order"
 	"context"
 	"errors"
 	"time"
@@ -99,7 +99,7 @@ func (m *customOrderModel) UpdateTimeoutOrder(ctx context.Context, req UpdateTim
 	// 構建過濾條件，選擇創建時間在指定時間之前且狀態為 0 (創建) 的項目
 	filter := bson.M{
 		"create_time": bson.M{"$lt": req.CreateTimeBefore},
-		"status":      domain.OrderStatusCreated,
+		"status":      order.Cancelled,
 		"$or": []bson.M{
 			{"delete_time": bson.M{"$exists": false}},
 			{"delete_time": 0},
@@ -109,7 +109,7 @@ func (m *customOrderModel) UpdateTimeoutOrder(ctx context.Context, req UpdateTim
 	// 更新內容，將狀態設置為 11，並更新 update_time
 	updates := bson.M{
 		"$set": bson.M{
-			"status":      domain.OrderStatusTimeout,
+			"status":      order.TimedOut,
 			"update_time": time.Now().UTC().UnixNano(),
 		},
 	}
diff --git a/internal/model/mongo/order_types.go b/internal/model/mongo/order_types.go
index db23980..fa684a5 100644
--- a/internal/model/mongo/order_types.go
+++ b/internal/model/mongo/order_types.go
@@ -1,7 +1,7 @@
 package model
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/order"
 
 	"github.com/shopspring/decimal"
 	"go.mongodb.org/mongo-driver/bson/primitive"
@@ -12,8 +12,8 @@ type Order struct {
 	UpdateTime    int64              `bson:"update_time"`
 	CreateTime    int64              `bson:"create_time"`
 	BusinessID    string             `bson:"business_id"`              // 訂單業務流水號
-	OrderType     domain.OrderType   `bson:"order_type"`               // 訂單類型
-	OrderStatus   domain.OrderStatus `bson:"order_status"`             // 訂單狀態
+	OrderType     order.Type         `bson:"order_type"`               // 訂單類型
+	OrderStatus   order.Status       `bson:"order_status"`             // 訂單狀態
 	Brand         string             `bson:"brand"`                    // 下單平台
 	OrderUID      string             `bson:"order_uid"`                // 下單用戶 UID
 	ReferenceID   string             `bson:"reference_id"`             // 訂單來源
diff --git a/internal/model/wallet_model.go b/internal/model/wallet_model.go
index 441c8d1..98c8bce 100755
--- a/internal/model/wallet_model.go
+++ b/internal/model/wallet_model.go
@@ -1,7 +1,7 @@
 package model
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"context"
 	"database/sql"
 	"errors"
@@ -34,7 +34,7 @@ type (
 	BalanceReq struct {
 		UID      []string
 		Currency []string
-		Kind     []domain.WalletType
+		Kind     []wallet.BalanceType
 	}
 )
 
@@ -89,7 +89,7 @@ func (m *customWalletModel) Balances(ctx context.Context, req BalanceReq, isLock
 	switch {
 	case err == nil:
 		return wallets, nil
-	case errors.As(sqlc.ErrNotFound, &err):
+	case errors.Is(err, sqlc.ErrNotFound):
 		return nil, ErrNotFound
 	default:
 		return nil, err
@@ -117,7 +117,7 @@ func (m *customWalletModel) BalancesByIDs(ctx context.Context, ids []int64, with
 	switch {
 	case err == nil:
 		return wallets, nil
-	case errors.As(sqlc.ErrNotFound, &err):
+	case errors.Is(err, sqlc.ErrNotFound):
 		return nil, ErrNotFound
 	default:
 		return nil, err
diff --git a/internal/model/wallet_model_gen.go b/internal/model/wallet_model_gen.go
index 50eb821..84e31d0 100755
--- a/internal/model/wallet_model_gen.go
+++ b/internal/model/wallet_model_gen.go
@@ -3,7 +3,7 @@
 package model
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"context"
 	"database/sql"
 	"fmt"
@@ -40,11 +40,11 @@ type (
 
 	Wallet struct {
 		Id         int64             `db:"id"`          // 錢包流水號
-		Uid        string            `db:"uid"`         // 用戶ID
+		Uid string `db:"uid"`                           // 用戶ID
 		Brand      string            `db:"brand"`       // 品牌名稱
 		Currency   string            `db:"currency"`    // 幣別（或平台點數）
 		Balance    decimal.Decimal   `db:"balance"`     // 錢包餘額
-		WalletType domain.WalletType `db:"wallet_type"` // 錢包種類: 1=可用, 2=凍結, 3=限制（僅出金）
+		WalletType wallet.BalanceType `db:"wallet_type"` // 錢包種類: 1=可用, 2=凍結, 3=限制（僅出金）
 		CreatedAt  int64             `db:"created_at"`  // 創建時間
 		UpdatedAt  int64             `db:"updated_at"`  // 更新時間
 	}
diff --git a/internal/repository/user_wallet.go b/internal/repository/user_wallet.go
index bf3f27a..bf5e54f 100644
--- a/internal/repository/user_wallet.go
+++ b/internal/repository/user_wallet.go
@@ -1,8 +1,8 @@
 package repository
 
 import (
-	"app-cloudep-trade-service/internal/domain"
 	"app-cloudep-trade-service/internal/domain/repository"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"app-cloudep-trade-service/internal/model"
 	"context"
 
@@ -19,7 +19,7 @@ type userLocalWallet struct {
 	currency string
 
 	// local wallet 相關計算的餘額存在這裡
-	walletBalance map[domain.WalletType]model.Wallet
+	walletBalance map[wallet.BalanceType]model.Wallet
 
 	// local order wallet 相關計算的餘額存在這裡
 	localOrderBalance map[int64]decimal.Decimal
@@ -28,6 +28,7 @@ type userLocalWallet struct {
 	transactions []model.WalletJournal
 }
 
+// GetBalancesByID 使用 Wallet ID 取得餘額，如果需要上鎖，可以在 option 內加上 tx 以及 lock，可以參考 TestBalanceUseCase
 func (use *userLocalWallet) GetBalancesByID(ctx context.Context, ids []int64, opts ...repository.WalletOperatorOption) ([]model.Wallet, error) {
 	o := repository.ApplyOptions(opts...)
 	tx := use.txConn
@@ -40,24 +41,25 @@ func (use *userLocalWallet) GetBalancesByID(ctx context.Context, ids []int64, op
 		return nil, err
 	}
 
-	for _, wallet := range wallets {
-		use.walletBalance[wallet.WalletType] = wallet
+	for _, w := range wallets {
+		use.walletBalance[w.WalletType] = w
 	}
 
 	return wallets, nil
 }
 
 // LocalBalance 內存餘額
-func (use *userLocalWallet) LocalBalance(kind domain.WalletType) decimal.Decimal {
-	wallet, ok := use.walletBalance[kind]
+func (use *userLocalWallet) LocalBalance(BalanceType wallet.BalanceType) decimal.Decimal {
+	w, ok := use.walletBalance[BalanceType]
 	if !ok {
 		return decimal.Zero
 	}
 
-	return wallet.Balance
+	return w.Balance
 }
 
-func (use *userLocalWallet) Balances(ctx context.Context, kind []domain.WalletType, opts ...repository.WalletOperatorOption) ([]model.Wallet, error) {
+// Balances 取得餘額，如果需要上鎖，可以在option 內加上 tx 以及 lock，可以參考 TestBalanceUseCase
+func (use *userLocalWallet) Balances(ctx context.Context, balanceType []wallet.BalanceType, opts ...repository.WalletOperatorOption) ([]model.Wallet, error) {
 	o := repository.ApplyOptions(opts...)
 	tx := use.txConn
 	if o.Tx != nil {
@@ -67,7 +69,7 @@ func (use *userLocalWallet) Balances(ctx context.Context, kind []domain.WalletTy
 	wallets, err := use.wm.Balances(ctx, model.BalanceReq{
 		UID:      []string{use.uid},
 		Currency: []string{use.currency},
-		Kind:     kind,
+		Kind:     balanceType,
 	}, o.WithLock, tx)
 	if err != nil {
 		return nil, err
@@ -87,7 +89,7 @@ func NewUserWalletOperator(uid, currency string, wm model.WalletModel, txConn sq
 		uid:      uid,
 		currency: currency,
 
-		walletBalance:     make(map[domain.WalletType]model.Wallet, len(domain.AllWalletType)),
-		localOrderBalance: make(map[int64]decimal.Decimal, len(domain.AllWalletType)),
+		walletBalance:     make(map[wallet.BalanceType]model.Wallet, len(wallet.AllBalanceTypes)),
+		localOrderBalance: make(map[int64]decimal.Decimal, len(wallet.AllBalanceTypes)),
 	}
 }
diff --git a/internal/repository/wallet.go b/internal/repository/wallet.go
index 9fb1b9e..57fe93f 100644
--- a/internal/repository/wallet.go
+++ b/internal/repository/wallet.go
@@ -3,6 +3,7 @@ package repository
 import (
 	"app-cloudep-trade-service/internal/domain"
 	"app-cloudep-trade-service/internal/domain/repository"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"app-cloudep-trade-service/internal/model"
 	"context"
 	"database/sql"
@@ -88,10 +89,10 @@ func (repo *WalletRepository) GetUserWalletOperator(uid, currency string, opts .
 
 // Create 創建錢包，如果有相同的就跳過不建立
 func (repo *WalletRepository) Create(ctx context.Context, uid, currency, brand string) ([]*model.Wallet, error) {
-	wallets := make([]*model.Wallet, 0, len(domain.AllWalletType))
+	wallets := make([]*model.Wallet, 0, len(wallet.AllBalanceTypes))
 	// 建立個人所有種類的錢包
 	now := time.Now().UTC().UnixNano()
-	for _, item := range domain.AllWalletType {
+	for _, item := range wallet.AllBalanceTypes {
 		balance := decimal.Zero
 		wallets = append(wallets, &model.Wallet{
 			Brand:      brand,
@@ -127,7 +128,7 @@ func (repo *WalletRepository) Balances(ctx context.Context, req repository.Balan
 	data, err := repo.WalletModel.Balances(ctx, model.BalanceReq{
 		UID:      req.UID,
 		Currency: req.Currency,
-		Kind:     req.Kind,
+		Kind:     req.BalanceType,
 	}, false, repo.TxConn)
 
 	if err != nil {
diff --git a/internal/repository/wallet_test.go b/internal/repository/wallet_test.go
index e94cb2a..bd31340 100644
--- a/internal/repository/wallet_test.go
+++ b/internal/repository/wallet_test.go
@@ -1,7 +1,7 @@
 package repository
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/wallet"
 	"app-cloudep-trade-service/internal/model"
 	"context"
 	"fmt"
@@ -22,7 +22,7 @@ func TestByMe(t *testing.T) {
 	ctx := context.Background()
 
 	wo := WalletRepo.GetUserWalletOperator("OOOOOOOK", "USD")
-	balances, err := wo.Balances(ctx, domain.AllWalletType)
+	balances, err := wo.Balances(ctx, wallet.AllBalanceTypes)
 	if err != nil {
 		return
 	}
@@ -77,3 +77,5 @@ func TestByMe(t *testing.T) {
 
 	// fmt.Println(balances)
 }
+
+func TestBalanceUseCase(t *testing.T) {}
diff --git a/internal/usecase/order_test.go b/internal/usecase/order_test.go
index 44f1136..5799565 100644
--- a/internal/usecase/order_test.go
+++ b/internal/usecase/order_test.go
@@ -1,7 +1,7 @@
 package usecase
 
 import (
-	"app-cloudep-trade-service/internal/domain"
+	"app-cloudep-trade-service/internal/domain/order"
 	"app-cloudep-trade-service/internal/domain/usecase"
 	mockmodel "app-cloudep-trade-service/internal/mock/model"
 	model "app-cloudep-trade-service/internal/model/mongo"
@@ -30,7 +30,7 @@ func TestOrderUseCase_CancelOrder(t *testing.T) {
 
 	cancelOrderQuery := usecase.CancelOrderQuery{
 		BusinessID: "business_123",
-		Status:     domain.OrderStatusCancelled, // 使用模擬的狀態
+		Status:     order.Cancelled, // 使用模擬的狀態
 	}
 
 	tests := []struct {
@@ -89,8 +89,8 @@ func TestOrderUseCase_CreateOrder(t *testing.T) {
 	// 構建測試參數
 	createOrderReq := usecase.CreateOrderReq{
 		BusinessID:          "business_123",
-		OrderType:           domain.OrderTypeTest,
-		OrderStatus:         domain.OrderStatusCreated,
+		OrderType:           order.TestType,
+		OrderStatus:         order.Created,
 		Brand:               "test_brand",
 		OrderUID:            "user_123",
 		ReferenceID:         "reference_123",
@@ -222,8 +222,8 @@ func TestOrderUseCase_GetOrder(t *testing.T) {
 		UpdateTime:          123456789,
 		CreateTime:          123456789,
 		BusinessID:          "business_123",
-		OrderType:           domain.OrderTypeTest,
-		OrderStatus:         domain.OrderStatusCreated,
+		OrderType:           order.TestType,
+		OrderStatus:         order.Created,
 		Brand:               "test_brand",
 		OrderUID:            "user_123",
 		ReferenceID:         "reference_123",
@@ -343,14 +343,14 @@ func TestOrderUseCase_ListOrder(t *testing.T) {
 		PageIndex:   1,
 		PageSize:    10,
 		BusinessID:  "business_123",
-		OrderStatus: []int64{int64(domain.OrderStatusCreated)},
+		OrderStatus: []int64{int64(order.Created)},
 	}
 
 	mockOrders := []model.Order{
 		{
 			BusinessID:  "business_123",
 			OrderUID:    "user_123",
-			OrderStatus: domain.OrderStatusCreated,
+			OrderStatus: order.Created,
 			// 其他欄位根據需要填充
 		},
 	}
@@ -414,7 +414,7 @@ func TestOrderUseCase_ModifyOrderStatus(t *testing.T) {
 
 	modifyOrderQuery := &usecase.ModifyOrderQuery{
 		BusinessID: "business_123",
-		Status:     int64(domain.OrderStatusCancelled),
+		Status:     int64(order.Cancelled),
 	}
 
 	tests := []struct {