diff --git a/apps/enm/serializers.py b/apps/enm/serializers.py
index d7a53487..022d7263 100644
--- a/apps/enm/serializers.py
+++ b/apps/enm/serializers.py
@@ -2,9 +2,11 @@ from apps.utils.serializers import CustomModelSerializer
 from apps.enm.models import Mpoint, MpLog, MpointStat
 from apps.utils.constants import EXCLUDE_FIELDS
 from rest_framework import serializers
+from apps.mtm.models import Mgroup
 
 
 class MpointSerializer(CustomModelSerializer):
+    mgroup = serializers.PrimaryKeyRelatedField(label="测点集", queryset=Mgroup.objects.all(), required=True)
     mgroup_name = serializers.CharField(source='mgroup.name', read_only=True)
     belong_dept_name = serializers.CharField(source='belong_dept.name', read_only=True)
     ep_monitored_name = serializers.CharField(source='ep_monitored.name', read_only=True)
@@ -12,7 +14,11 @@ class MpointSerializer(CustomModelSerializer):
     class Meta:
         model = Mpoint
         fields = '__all__'
-        read_only_fields = EXCLUDE_FIELDS
+        read_only_fields = EXCLUDE_FIELDS + ['belong_dept']
+    
+    def validate(self, attrs):
+        attrs['belong_dept'] = attrs['mgroup'].belong_dept
+        return attrs
 
 
 class MpLogSerializer(CustomModelSerializer):