diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 2132be70..222ad899 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -562,7 +562,7 @@ class MlogbInSerializer(CustomModelSerializer):
         attrs['batch'] = wm_in.batch
         attrs["batch_ofrom"] = wm_in.batch_ofrom
         attrs["material_ofrom"] = wm_in.material_ofrom
-        if route.batch_bind and mtask is not None:
+        if route and route.batch_bind and mtask is not None:
             if not WMaterial.mat_in_qs(mtask).filter(id=wm_in.id).exists():
                 raise ParseError('该车间库存非本任务使用')
         return attrs