diff --git a/internal/service/refund/service.go b/internal/service/refund/service.go
index 82354a9..1fa9c97 100644
--- a/internal/service/refund/service.go
+++ b/internal/service/refund/service.go
@@ -904,7 +904,7 @@ func validateRequestedRefundAmountByOrder(requestedRefundAmount int64, order *mo
 
 // validateApprovedRefundAmount 校验审批退款金额不能超过申请金额和订单实收金额。
 func validateApprovedRefundAmount(approvedAmount int64, requestedRefundAmount int64, order *model.Order) error {
-	if approvedAmount > 0 {
+	if approvedAmount < 0 {
 		return errors.New(errors.CodeInvalidParam, "审批退款金额必须大于0")
 	}
 	if approvedAmount > requestedRefundAmount {