diff --git a/apps/application/flow/step_node/data_source_local_node/impl/base_data_source_local_node.py b/apps/application/flow/step_node/data_source_local_node/impl/base_data_source_local_node.py
index 0e501a111..7dd9b810b 100644
--- a/apps/application/flow/step_node/data_source_local_node/impl/base_data_source_local_node.py
+++ b/apps/application/flow/step_node/data_source_local_node/impl/base_data_source_local_node.py
@@ -22,7 +22,7 @@ class BaseDataSourceLocalNode(IDataSourceLocalNode):
 
     @staticmethod
     def get_form_class():
-        return BaseDataSourceLocalNodeForm()
+        return BaseDataSourceLocalNodeForm
 
     def execute(self, file_format, max_file_number, file_max_size, **kwargs) -> NodeResult:
         pass
diff --git a/apps/knowledge/serializers/knowledge_workflow.py b/apps/knowledge/serializers/knowledge_workflow.py
index 73624b08c..2473d3868 100644
--- a/apps/knowledge/serializers/knowledge_workflow.py
+++ b/apps/knowledge/serializers/knowledge_workflow.py
@@ -32,7 +32,7 @@ class KnowledgeWorkflowSerializer(serializers.Serializer):
             self.is_valid(raise_exception=True)
             if self.data.get('type') == 'local':
                 node = get_node(self.data.get('id'))
-                return node.get_form_class().to_form_list()
+                return node.get_form_class()().to_form_list()
             elif self.data.get('type') == 'tool':
                 tool = QuerySet(Tool).filter(id=self.data.get("id")).first()
                 # todo 调用工具数据源的函数获取表单列表