diff --git a/apps/pm/serializers.py b/apps/pm/serializers.py
index 2fa97378..3c09d1de 100644
--- a/apps/pm/serializers.py
+++ b/apps/pm/serializers.py
@@ -32,10 +32,14 @@ class UtaskSerializer(CustomModelSerializer):
         return attrs
 
     def update(self, instance, validated_data):
-        if instance.state != Mtask.MTASK_CREATED:
-            raise ValidationError('任务非创建中不可编辑')
-        new_data = {key: validated_data[key] for key in [
-            'number', 'count', 'start_date', 'end_date']}
+        if instance.state in [Mtask.MTASK_STOP, Mtask.MTASK_DONE]:
+            raise ValidationError('任务该状态下不可编辑')
+        if instance.state == Mtask.MTASK_CREATED:
+            new_data = {key: validated_data[key] for key in [
+                'number', 'count', 'start_date', 'end_date']}
+        else:
+            new_data = {key: validated_data[key] for key in [
+                'peifen_kg']}
         return super().update(instance, new_data)