diff --git a/pkg/api/http/service/bot.py b/pkg/api/http/service/bot.py
index 86308bd8..e5010007 100644
--- a/pkg/api/http/service/bot.py
+++ b/pkg/api/http/service/bot.py
@@ -93,6 +93,11 @@ class BotService:
         if runtime_bot.enable:
             await runtime_bot.run()
 
+        # update all conversation that use this bot
+        for session in self.ap.sess_mgr.session_list:
+            if session.using_conversation is not None and session.using_conversation.bot_uuid == bot_uuid:
+                session.using_conversation = None
+
     async def delete_bot(self, bot_uuid: str) -> None:
         """删除机器人"""
         await self.ap.platform_mgr.remove_bot(bot_uuid)
diff --git a/pkg/api/http/service/pipeline.py b/pkg/api/http/service/pipeline.py
index 5a8d9f7d..f0f6c083 100644
--- a/pkg/api/http/service/pipeline.py
+++ b/pkg/api/http/service/pipeline.py
@@ -112,6 +112,11 @@ class PipelineService:
         await self.ap.pipeline_mgr.remove_pipeline(pipeline_uuid)
         await self.ap.pipeline_mgr.load_pipeline(pipeline)
 
+        # update all conversation that use this pipeline
+        for session in self.ap.sess_mgr.session_list:
+            if session.using_conversation is not None and session.using_conversation.pipeline_uuid == pipeline_uuid:
+                session.using_conversation = None
+
     async def delete_pipeline(self, pipeline_uuid: str) -> None:
         await self.ap.persistence_mgr.execute_async(
             sqlalchemy.delete(persistence_pipeline.LegacyPipeline).where(
diff --git a/pkg/core/entities.py b/pkg/core/entities.py
index 5682949f..4caf18ed 100644
--- a/pkg/core/entities.py
+++ b/pkg/core/entities.py
@@ -137,6 +137,12 @@ class Conversation(pydantic.BaseModel):
 
     use_funcs: typing.Optional[list[tools_entities.LLMFunction]]
 
+    pipeline_uuid: str
+    """流水线UUID。"""
+
+    bot_uuid: str
+    """机器人UUID。"""
+
     uuid: typing.Optional[str] = None
     """该对话的 uuid，在创建时不会自动生成。而是当使用 Dify API 等由外部管理对话信息的服务时，用于绑定外部的会话。具体如何使用，取决于 Runner。"""
 
diff --git a/pkg/pipeline/preproc/preproc.py b/pkg/pipeline/preproc/preproc.py
index 65463385..19478200 100644
--- a/pkg/pipeline/preproc/preproc.py
+++ b/pkg/pipeline/preproc/preproc.py
@@ -45,6 +45,8 @@ class PreProcessor(stage.PipelineStage):
             query,
             session,
             query.pipeline_config['ai']['local-agent']['prompt'],
+            query.pipeline_uuid,
+            query.bot_uuid,
         )
 
         conversation.use_llm_model = llm_model
diff --git a/pkg/provider/session/sessionmgr.py b/pkg/provider/session/sessionmgr.py
index 8966be79..f54b50e7 100644
--- a/pkg/provider/session/sessionmgr.py
+++ b/pkg/provider/session/sessionmgr.py
@@ -41,6 +41,8 @@ class SessionManager:
         query: core_entities.Query,
         session: core_entities.Session,
         prompt_config: list[dict],
+        pipeline_uuid: str,
+        bot_uuid: str,
     ) -> core_entities.Conversation:
         """获取对话或创建对话"""
 
@@ -58,13 +60,15 @@ class SessionManager:
             messages=prompt_messages,
         )
 
-        if session.using_conversation is None:
+        if session.using_conversation is None or session.using_conversation.pipeline_uuid != pipeline_uuid:
             conversation = core_entities.Conversation(
                 prompt=prompt,
                 messages=[],
                 use_funcs=await self.ap.tool_mgr.get_all_functions(
                     plugin_enabled=True,
                 ),
+                pipeline_uuid=pipeline_uuid,
+                bot_uuid=bot_uuid,
             )
             session.conversations.append(conversation)
             session.using_conversation = conversation