diff --git a/apps/wpmw/serializers.py b/apps/wpmw/serializers.py
index 0fd71ba5..779fd090 100644
--- a/apps/wpmw/serializers.py
+++ b/apps/wpmw/serializers.py
@@ -32,6 +32,11 @@ class WprNewSerializer(serializers.Serializer):
     material_start = serializers.CharField(label="物料ID")
 
 
-class WproutSerializer(serializers.ListSerializer):
+class WproutSerializer(serializers.Serializer):
     id = serializers.CharField(label="wprId")
-    number_out = serializers.CharField(label="对外编号")
\ No newline at end of file
+    number_out = serializers.CharField(label="对外编号")
+
+
+class WproutListSerializer(serializers.Serializer):
+    items = WproutSerializer(many=True)
+
diff --git a/apps/wpmw/views.py b/apps/wpmw/views.py
index a26db9e2..a072b710 100644
--- a/apps/wpmw/views.py
+++ b/apps/wpmw/views.py
@@ -3,7 +3,7 @@ from apps.utils.viewsets import CustomModelViewSet, CustomGenericViewSet
 from apps.utils.mixins import CustomListModelMixin, RetrieveModelMixin, ComplexQueryMixin
 
 from apps.wpmw.models import Wpr, WprDefect
-from apps.wpmw.serializers import WprSerializer, WprNewSerializer, WprDetailSerializer, WproutSerializer
+from apps.wpmw.serializers import WprSerializer, WprNewSerializer, WprDetailSerializer, WproutListSerializer
 from rest_framework.response import Response
 from apps.mtm.models import Material
 from rest_framework.exceptions import ParseError
@@ -70,7 +70,7 @@ class WprViewSet(CustomListModelMixin, RetrieveModelMixin, ComplexQueryMixin, Cu
         else:
             return Response({"number_out_last": None})
     
-    @action(methods=['post'], detail=False, perms_map={'post': '*'}, serializer_class=WproutSerializer)
+    @action(methods=['post'], detail=False, perms_map={'post': '*'}, serializer_class=WproutListSerializer)
     @transaction.atomic
     def assgin_number_out(self, request, *args, **kwargs):
         """分配出库对外编号