diff --git a/internal/logic/blockchainservice/list_symbols_logic.go b/internal/logic/blockchainservice/list_symbols_logic.go
index c3ec708..ac20e0a 100644
--- a/internal/logic/blockchainservice/list_symbols_logic.go
+++ b/internal/logic/blockchainservice/list_symbols_logic.go
@@ -1,11 +1,9 @@
 package blockchainservicelogic
 
 import (
-	"context"
-
 	app_cloudep_blockchain "blockchain/gen_result/pb/code.30cm.net/digimon/app-cloudep-blockchain"
 	"blockchain/internal/svc"
-
+	"context"
 	"github.com/zeromicro/go-zero/core/logx"
 )
 
@@ -29,18 +27,18 @@ func (l *ListSymbolsLogic) ListSymbols(in *app_cloudep_blockchain.ListSymbolsReq
 	if err != nil {
 		return nil, err
 	}
-
 	rpy := make([]*app_cloudep_blockchain.Symbol, 0, len(result))
-
 	for _, item := range result {
-		rpy = append(rpy, &app_cloudep_blockchain.Symbol{
-			Symbol:              item.Symbol,
-			Status:              item.Status,
-			BaseAsset:           item.BaseAsset,
-			BaseAssetPrecision:  int32(item.BaseAssetPrecision),
-			QuoteAsset:          item.QuoteAsset,
-			QuoteAssetPrecision: int32(item.QuoteAssetPrecision),
-		})
+		if item != nil {
+			rpy = append(rpy, &app_cloudep_blockchain.Symbol{
+				Symbol:              item.Symbol,
+				Status:              item.Status,
+				BaseAsset:           item.BaseAsset,
+				BaseAssetPrecision:  int32(item.BaseAssetPrecision),
+				QuoteAsset:          item.QuoteAsset,
+				QuoteAssetPrecision: int32(item.QuoteAssetPrecision),
+			})
+		}
 	}
 
 	return &app_cloudep_blockchain.ListSymbolsResponse{
diff --git a/internal/usecase/binance.go b/internal/usecase/binance.go
index 0b090b9..0865451 100644
--- a/internal/usecase/binance.go
+++ b/internal/usecase/binance.go
@@ -42,7 +42,7 @@ func (use *BinanceUseCase) GetSymbols(ctx context.Context) ([]*usecase.Symbol, e
 		return nil, e
 	}
 
-	rpy := make([]*usecase.Symbol, len(result))
+	rpy := make([]*usecase.Symbol, 0, len(result))
 	for _, item := range result {
 		rpy = append(rpy, &usecase.Symbol{
 			Symbol:              item.Symbol,