diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 2093970a..a1e913f0 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -341,8 +341,10 @@ class HandoverSerializer(CustomModelSerializer):
         if attrs.get('wm', None):
             material = attrs['wm'].material
             attrs['material'] = attrs['wm'].material
+            attrs['batch'] = attrs['wm'].batch
             attrs['send_dept'] = attrs['wm'].belong_dept
-            attrs['send_mgroup'] = attrs['wm'].mgroup
+            if attrs['wm'].mgroup:
+                attrs['send_mgroup'] = attrs['wm'].mgroup
             if material.process and material.process.into_wm_mgroup and 'recive_mgroup' not in attrs:
                 raise ValidationError('必须指定交接工段')
         if attrs.get('recive_mgroup', None):
@@ -354,7 +356,7 @@ class HandoverSerializer(CustomModelSerializer):
     class Meta:
         model = Handover
         fields = '__all__'
-        read_only_fields = EXCLUDE_FIELDS + ["batch", "material", "send_dept", "send_mgroup", "mlog"]
+        read_only_fields = EXCLUDE_FIELDS + ["batch", "material", "send_dept", "mlog"]
         extra_kwargs = {
             "wm": {"required": True},
             "recive_mgroup": {"required": False}