diff --git a/apps/backend/plugin/tools.py b/apps/backend/plugin/tools.py
index 79f58f1f7..139e7640c 100644
--- a/apps/backend/plugin/tools.py
+++ b/apps/backend/plugin/tools.py
@@ -178,7 +178,6 @@ def _validate_node(_node: Dict[str, Any]) -> Dict[str, Any]:
             # 初始化 properties
             validated_node["properties"] = {}
             for title, property_node in node["properties"].items():
-                property_node["title"] = title
                 property_node["depth"] = depth
                 stack.append(property_node)
                 # 初始化 properties 子节点