diff --git a/apps/inm/services.py b/apps/inm/services.py
index a424c738..49df8dcf 100644
--- a/apps/inm/services.py
+++ b/apps/inm/services.py
@@ -272,7 +272,7 @@ class InmService:
         """
         更新库存, 支持反向操作
         """
-        if not MIOItem.objects.filter(mio=instance).exists():
+        if is_reverse is False and not MIOItem.objects.filter(mio=instance).exists():
             raise ParseError("出入库记录缺失明细,无法操作")
         
         if instance.type == MIO.MIO_TYPE_PUR_IN:  # 需要更新订单