diff --git a/trader/position_sync.go b/trader/position_sync.go
index 30c2ca56..a7d270d5 100644
--- a/trader/position_sync.go
+++ b/trader/position_sync.go
@@ -260,7 +260,8 @@ func (m *PositionSyncManager) getTraderConfig(traderID string) (*store.TraderFul
 func (m *PositionSyncManager) createTrader(config *store.TraderFullConfig) (Trader, error) {
 	exchange := config.Exchange
 
-	switch exchange.Type {
+	// 使用 exchange.ID 判断具体的交易所，而不是 exchange.Type (cex/dex)
+	switch exchange.ID {
 	case "binance":
 		return NewFuturesTrader(exchange.APIKey, exchange.SecretKey, config.Trader.UserID), nil
 
@@ -285,7 +286,7 @@ func (m *PositionSyncManager) createTrader(config *store.TraderFullConfig) (Trad
 		return NewLighterTrader(exchange.LighterPrivateKey, exchange.LighterWalletAddr, exchange.Testnet)
 
 	default:
-		return nil, fmt.Errorf("不支持的交易所类型: %s", exchange.Type)
+		return nil, fmt.Errorf("不支持的交易所: %s", exchange.ID)
 	}
 }