diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 6a74d8a0..d8a45a78 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -639,6 +639,10 @@ class MlogSerializer(CustomModelSerializer):
             attrs['handle_date'] = mtask.end_date
             if attrs['handle_date'] != handle_date:
                 raise ParseError('任务日期与生产日期不一致')
+            else:
+                attrs['handle_date'] = handle_date
+        else:
+            attrs['handle_date'] = handle_date
 
         handle_user = attrs.get('handle_user', None)
         if handle_user is None and hasattr(self, "request"):