diff --git a/app/api/v2/zhipu_controller_v2.py b/app/api/v2/zhipu_controller_v2.py
index fc3e7b4..0ce141e 100644
--- a/app/api/v2/zhipu_controller_v2.py
+++ b/app/api/v2/zhipu_controller_v2.py
@@ -8,6 +8,21 @@ from app.services.zhipu_kb_service import ZhipuKbService
 from app.services.openai_service import OpenaiService
 from app.utils.prompt_repository import PromptRepository  # Add this import
 from app.utils.sessions import init_session
+import os
+
+CONFIG_FILE = 'llm_service_config.json'
+
+def get_current_service():
+    if os.path.exists(CONFIG_FILE):
+        with open(CONFIG_FILE, 'r') as f:
+            config = json.load(f)
+            return config.get('llm_service', 'zhipu')
+    return 'zhipu'  # Default to zhipu if file doesn't exist
+
+def set_current_service(service):
+    config = {'llm_service': service}
+    with open(CONFIG_FILE, 'w') as f:
+        json.dump(config, f)
 
 zhipu_controller_v2 = Blueprint('zhipu_controller_v2', __name__)
 
@@ -157,16 +172,19 @@ def analysis_stream():
     if 'zhipu' in message.lower() or '智谱' in message:
         logger.info(f'switch to zhipu service, save to session')
         session['llm_service'] = 'zhipu'
+        set_current_service('zhipu')
         return format_chunk("切换到智谱AI服务", None, None)
     if 'openai' in message.lower() or 'openai' in message:
         logger.info(f'switch to openai service, save to session')
         session['llm_service'] = 'openai'
+        set_current_service('openai')
         return format_chunk("切换到openai服务", None, None)
     # 默认使用智谱AI服务
     llm_service = zhipu_service
     logger.info(f'llm_service: {session["llm_service"]}')
-    current_service = session.get('llm_service', 'zhipu')  # Default to 'zhipu' if not set
-    
+    # current_service = session.get('llm_service', 'zhipu')  # Default to 'zhipu' if not set
+    current_service = get_current_service()
+
     if current_service == 'openai':
         logger.info('Using OpenAI service')
         llm_service = openai_service
@@ -263,3 +281,4 @@ def analysis_stream():
 
     return Response(event_stream(), mimetype='text/event-stream', headers=response_headers)
 
+