diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 6cf17101..7af96c82 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -494,7 +494,11 @@ class MlogbInViewSet(CreateModelMixin, UpdateModelMixin, DestroyModelMixin, Cust
         qs = Mlogb.objects.none()
         if ins.mlogb_to:
             qs = qs|Mlogb.objects.filter(id=ins.mlogb_to.id)
-        if ins.mtask:
+            ftestIds = list(Ftest.objects.filter(mlogbw_ftest__mlogb__in=qs).values_list('id', flat=True))
+            qs.delete()
+            if ftestIds:
+                Ftest.objects.filter(id__in=ftestIds).delete()
+        elif ins.mtask:
             query_dict = {"material_out__isnull": False, "mlog": ins.mlog, "mtask": ins.mtask}
             route = ins.mtask.route
             if route.batch_bind:
@@ -503,8 +507,9 @@ class MlogbInViewSet(CreateModelMixin, UpdateModelMixin, DestroyModelMixin, Cust
             # 需要删除子集ftest记录
             ftestIds = list(Ftest.objects.filter(mlogbw_ftest__mlogb__in=qs).values_list('id', flat=True))
             qs.delete()
-            Ftest.objects.filter(id__in=ftestIds).delete()
-        instance.delete()
+            if ftestIds:
+                Ftest.objects.filter(id__in=ftestIds).delete()
+        ins.delete()
 
     @transaction.atomic
     def perform_create(self, serializer):