diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 2bcdc35a..70ebafd8 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -708,9 +708,9 @@ class MlogbwViewSet(CustomModelViewSet):
 
     @transaction.atomic
     def perform_destroy(self, instance:Mlogbw):
-        mlogb = instance.mlogb
-        if mlogb.material_out is not None:
-            raise ParseError("不能删除产出明细")
+        mlogb:Mlogb = instance.mlogb
+        if mlogb.material_out is not None and mlogb.wpr is not None:
+            raise ParseError("不能删除该产出明细")
         ftest = instance.ftest
         instance.delete()
         if ftest: