diff --git a/app/api/endpoints/plugin.py b/app/api/endpoints/plugin.py
index c4222e71..664a5b63 100644
--- a/app/api/endpoints/plugin.py
+++ b/app/api/endpoints/plugin.py
@@ -12,6 +12,7 @@ from starlette.responses import StreamingResponse
 from app import schemas
 from app.command import Command
 from app.core.config import settings
+from app.core.event import eventmanager
 from app.core.plugin import PluginManager
 from app.core.security import (
     resource_token_cookie,
@@ -30,7 +31,8 @@ from app.helper.server import MoviePilotServerHelper
 from app.helper.plugin import PluginHelper
 from app.log import logger
 from app.scheduler import Scheduler
-from app.schemas.types import SystemConfigKey
+from app.schemas.event import PluginDataResetEventData
+from app.schemas.types import ChainEventType, SystemConfigKey
 
 PROTECTED_ROUTES = {"/api/v1/openapi.json", "/docs", "/docs/oauth2-redirect", "/redoc"}
 PLUGIN_PREFIX = f"{settings.API_V1_STR}/plugin"
@@ -530,6 +532,12 @@ def reset_plugin(
     根据插件ID重置插件配置及数据
     """
     plugin_manager = PluginManager()
+    eventmanager.send_event(
+        ChainEventType.PluginDataReset,
+        PluginDataResetEventData(plugin_id=plugin_id, reset_config=True, reset_data=True),
+    )
+    # 事件处理器需要运行中插件完成补偿；补偿后先停止插件，避免删除数据时仍有任务读写旧状态。
+    plugin_manager.stop(plugin_id)
     # 删除配置
     plugin_manager.delete_plugin_config(plugin_id)
     # 删除插件所有数据
diff --git a/app/schemas/event.py b/app/schemas/event.py
index 39982970..aacb80fa 100644
--- a/app/schemas/event.py
+++ b/app/schemas/event.py
@@ -64,6 +64,19 @@ class ChainEventData(BaseEventData):
     pass
 
 
+class PluginDataResetEventData(ChainEventData):
+    """
+    PluginDataReset 事件的数据模型。
+
+    在主程序清空某个插件配置或插件数据前发出，插件可在数据被删除前完成
+    自有状态补偿。事件处理器只应处理 plugin_id 与自身匹配的事件。
+    """
+
+    plugin_id: str = Field(..., description="即将被重置的插件 ID")
+    reset_config: bool = Field(default=False, description="是否即将重置插件配置")
+    reset_data: bool = Field(default=False, description="是否即将重置插件数据")
+
+
 class AgentLLMProviderEventData(ChainEventData):
     """
     Agent LLM 供应商选择事件数据。
diff --git a/app/schemas/types.py b/app/schemas/types.py
index aa1f35d2..0c385fd0 100644
--- a/app/schemas/types.py
+++ b/app/schemas/types.py
@@ -163,6 +163,8 @@ EVENT_TYPE_NAMES = {
 
 # 同步链式事件
 class ChainEventType(Enum):
+    # 插件数据重置前
+    PluginDataReset = "plugin.data.reset"
     # 名称识别
     NameRecognize = "name.recognize"
     # 认证验证
diff --git a/tests/test_plugin_endpoint.py b/tests/test_plugin_endpoint.py
index 5f596f87..e7e8d8c9 100644
--- a/tests/test_plugin_endpoint.py
+++ b/tests/test_plugin_endpoint.py
@@ -3,7 +3,10 @@ from unittest.mock import ANY, AsyncMock, MagicMock, patch
 
 from app import schemas
 from app.api.endpoints.plugin import plugin_history
+from app.api.endpoints.plugin import reset_plugin
 from app.api.endpoints.system import sync_plugin_market_from_wiki
+from app.schemas.event import PluginDataResetEventData
+from app.schemas.types import ChainEventType
 
 
 def test_plugin_history_merges_remote_metadata():
@@ -101,3 +104,51 @@ def test_sync_plugin_market_from_wiki_merges_and_deduplicates_repos():
         "https://github.com/local/existing,https://github.com/wiki/new-repo",
     )
     send_event.assert_awaited_once()
+
+
+def test_reset_plugin_sends_pre_reset_chain_event_before_deleting_data():
+    """
+    插件重置会先触发同步链式事件，让插件在数据被清空前完成自有状态补偿。
+    """
+    plugin_manager = MagicMock()
+    calls = []
+
+    def delete_config(plugin_id):
+        calls.append(("delete_config", plugin_id))
+        return True
+
+    def delete_data(plugin_id):
+        calls.append(("delete_data", plugin_id))
+        return True
+
+    def stop_plugin(plugin_id):
+        calls.append(("stop", plugin_id))
+        return True
+
+    plugin_manager.stop.side_effect = stop_plugin
+    plugin_manager.delete_plugin_config.side_effect = delete_config
+    plugin_manager.delete_plugin_data.side_effect = delete_data
+
+    with (
+        patch("app.api.endpoints.plugin.PluginManager", return_value=plugin_manager),
+        patch("app.api.endpoints.plugin.eventmanager") as eventmanager,
+        patch("app.api.endpoints.plugin.reload_plugin") as reload_plugin_mock,
+    ):
+        eventmanager.send_event.side_effect = lambda etype, data: calls.append(("event", etype, data))
+        result = reset_plugin("SubscribeAssistantEnhanced", None)
+
+    assert result.success is True
+    assert len(calls) == 4
+    event_call = calls[0]
+    assert event_call[0] == "event"
+    assert event_call[1] is ChainEventType.PluginDataReset
+    assert isinstance(event_call[2], PluginDataResetEventData)
+    assert event_call[2].plugin_id == "SubscribeAssistantEnhanced"
+    assert event_call[2].reset_config is True
+    assert event_call[2].reset_data is True
+    assert calls[1:] == [
+        ("stop", "SubscribeAssistantEnhanced"),
+        ("delete_config", "SubscribeAssistantEnhanced"),
+        ("delete_data", "SubscribeAssistantEnhanced"),
+    ]
+    reload_plugin_mock.assert_called_once_with("SubscribeAssistantEnhanced")