diff --git a/services/payment/internal/logic/refundLogic.go b/services/payment/internal/logic/refundLogic.go
index fb410d8..55f45a8 100644
--- a/services/payment/internal/logic/refundLogic.go
+++ b/services/payment/internal/logic/refundLogic.go
@@ -67,11 +67,10 @@ func (l *RefundLogic) Refund(in *payment.RefundReq) (*payment.Response, error) {
 		return outResponse(utils.Fail, err.Error()), nil
 	}
 
-	outTradeNo := orderOutTradeNo(orderInfo)
 	outRefundNo := fmt.Sprintf("RF%s%d", orderInfo.OrderSn, time.Now().UnixNano())
 
 	result, err := ch.Refund(l.ctx, &pkgpay.RefundRequest{
-		OutTradeNo:  outTradeNo,
+		OutTradeNo:  orderInfo.OrderSn,
 		OutRefundNo: outRefundNo,
 		Reason:      in.Reason,
 		RefundFen:   refundFen,