diff --git a/apps/inm/models.py b/apps/inm/models.py
index 74afe3d0..5e099c14 100644
--- a/apps/inm/models.py
+++ b/apps/inm/models.py
@@ -153,6 +153,10 @@ class MIOItem(BaseModel):
                 mioitem_count_fields.append(f.name)
         return mioitem_count_fields
 
+    @property
+    def mioitemw(self):
+        return MIOItemw.objects.filter(mioitem=self)
+
 class MIOItemA(BaseModel):
     """
     组合件出入库明细
diff --git a/apps/inm/serializers.py b/apps/inm/serializers.py
index 9835a7de..520a8f60 100644
--- a/apps/inm/serializers.py
+++ b/apps/inm/serializers.py
@@ -92,15 +92,11 @@ class MIOItemACreateSerializer(CustomModelSerializer):
         fields = ['material', 'batch', 'zhuidu',
                   'b_zuidawaijing', 'g_zuidaneijing']
 
-class MIOItemwCreateSerializer(CustomModelSerializer):
-    class Meta:
-        model = MIOItemw
-        fields = ["number", "note"]
-
 class MIOItemwSerializer(CustomModelSerializer):
     class Meta:
         model = MIOItemw
         fields = "__all__"
+        read_only_fields = EXCLUDE_FIELDS_BASE + ["mioitem"]
 
 class MIOItemwTestSerializer(CustomModelSerializer):
     class Meta:
@@ -118,12 +114,12 @@ class MIOItemwTestSerializer(CustomModelSerializer):
 class MIOItemCreateSerializer(CustomModelSerializer):
     assemb = MIOItemACreateSerializer(
         label='组合件信息', many=True, write_only=True, required=False)
-    mioitemw_ = MIOItemwCreateSerializer(many=True, required=False)
+    mioitemw = MIOItemwSerializer(many=True, required=False)
 
     class Meta:
         model = MIOItem
         fields = ['mio', 'warehouse', 'material',
-                  'batch', 'count', 'assemb', 'is_testok', 'mioitemw_']
+                  'batch', 'count', 'assemb', 'is_testok', 'mioitemw']
 
     def create(self, validated_data):
         mio = validated_data['mio']
@@ -142,7 +138,7 @@ class MIOItemCreateSerializer(CustomModelSerializer):
             count = validated_data["count"]
             batch = validated_data["batch"]
             assemb = validated_data.pop('assemb', [])
-            mioitemw_ = validated_data.pop('mioitemw_', [])
+            mioitemw = validated_data.pop('mioitemw', [])
             instance = super().create(validated_data)
             assemb_dict = {}
             for i in assemb:
@@ -157,12 +153,12 @@ class MIOItemCreateSerializer(CustomModelSerializer):
                     else:
                         raise ParseError('缺少组合件')
             if material.tracking == Material.MA_TRACKING_SINGLE:
-                if count == 1 and len(mioitemw_) == 0:
+                if count == 1 and len(mioitemw) == 0:
                     MIOItemw.objects.create(mioitem=instance, number=batch)
-                elif count == 1 and len(mioitemw_) >= 1:
-                    MIOItemw.objects.create(mioitem=instance, number=mioitemw_[0]['number'], note=mioitemw_[0]['note'])
-                elif count > 1 and len(mioitemw_) == count:
-                    for item in mioitemw_:
+                elif count == 1 and len(mioitemw) >= 1:
+                    MIOItemw.objects.create(mioitem=instance, number=mioitemw[0]['number'], note=mioitemw[0]['note'])
+                elif count > 1 and len(mioitemw) == count:
+                    for item in mioitemw:
                         MIOItemw.objects.create(mioitem=instance, number=item['number'], note=item['note'])
                 else:
                     raise ParseError('单个明细信息不匹配')
@@ -190,7 +186,7 @@ class MIOItemSerializer(CustomModelSerializer):
         source='material', read_only=True)
     inout_date = serializers.DateField(source='mio.inout_date', read_only=True)
     test_user_name = serializers.CharField(source='test_user.name', read_only=True)
-    mioitemw_ = MIOItemwSerializer(source='w_mioitem', read_only=True, many=True)
+    mioitemw = MIOItemwSerializer(many=True, required=False)
 
     class Meta:
         model = MIOItem