diff --git a/apps/utils/serializers.py b/apps/utils/serializers.py
index 4ea620da..3b9a1004 100755
--- a/apps/utils/serializers.py
+++ b/apps/utils/serializers.py
@@ -24,12 +24,13 @@ class CustomModelSerializer(DynamicFieldsMixin, serializers.ModelSerializer):
     def create(self, validated_data):
         if self.request:
             if getattr(self.request, 'user', None):
-                validated_data['create_by'] = self.request.user
-                if 'belong_dept' in validated_data:
-                    pass
-                elif getattr(self.request.user, 'belong_dept', None):
-                    if hasattr(self.Meta.model, 'belong_dept'):
-                        validated_data['belong_dept'] = self.request.user.belong_dept
+                if getattr(self.request.user, 'create_by', None):
+                    validated_data['create_by'] = self.request.user
+                    if 'belong_dept' in validated_data:
+                        pass
+                    elif getattr(self.request.user, 'belong_dept', None):
+                        if hasattr(self.Meta.model, 'belong_dept'):
+                            validated_data['belong_dept'] = self.request.user.belong_dept
         return super().create(validated_data)
 
     def update(self, instance, validated_data):