diff --git a/src/plugin_system/base/component_types.py b/src/plugin_system/base/component_types.py
index f740d0c96..5737b4fb6 100644
--- a/src/plugin_system/base/component_types.py
+++ b/src/plugin_system/base/component_types.py
@@ -80,6 +80,7 @@ class EventType(Enum):
     """
 
     ON_START = "on_start"  # 启动事件，用于调用按时任务
+    ON_STOP ="on_stop"
     ON_MESSAGE = "on_message"
     ON_PLAN = "on_plan"
     POST_LLM = "post_llm"