diff --git a/apps/inm/serializers.py b/apps/inm/serializers.py
index 9902f815..53ca8672 100644
--- a/apps/inm/serializers.py
+++ b/apps/inm/serializers.py
@@ -105,7 +105,7 @@ class MIOItemwSerializer(CustomModelSerializer):
 class MIOItemCreateSerializer(CustomModelSerializer):
     assemb = MIOItemACreateSerializer(
         label='组合件信息', many=True, write_only=True, required=False)
-    wproducts = MIOItemwCreateSerializer(many=True)
+    wproducts = MIOItemwCreateSerializer(many=True, required=False)
 
     class Meta:
         model = MIOItem