diff --git a/agent/agent_config.py b/agent/agent_config.py
index a24f5fe..86df410 100644
--- a/agent/agent_config.py
+++ b/agent/agent_config.py
@@ -85,6 +85,8 @@ class AgentConfig:
             robot_type = "deep_agent"
 
         preamble_text, system_prompt = get_preamble_text(request.language, request.system_prompt)
+        enable_thinking = request.enable_thinking and "```guideline" in request.system_prompt
+
         config = cls(
             bot_id=request.bot_id,
             api_key=api_key,
@@ -96,7 +98,7 @@ class AgentConfig:
             robot_type=robot_type,
             user_identifier=request.user_identifier,
             session_id=request.session_id,
-            enable_thinking=request.enable_thinking,
+            enable_thinking=enable_thinking,
             project_dir=project_dir,
             stream=request.stream,
             tool_response=request.tool_response,
@@ -121,10 +123,10 @@ class AgentConfig:
             messages = []
         language = request.language or bot_config.get("language", "zh")
         preamble_text, system_prompt = get_preamble_text(language, bot_config.get("system_prompt"))
-
         robot_type = bot_config.get("robot_type", "general_agent")
         if robot_type == "catalog_agent":
             robot_type = "deep_agent"
+        enable_thinking = request.enable_thinking and "```guideline" in bot_config.get("system_prompt")
 
         config = cls(
             bot_id=request.bot_id,
@@ -137,7 +139,7 @@ class AgentConfig:
             robot_type=robot_type,
             user_identifier=request.user_identifier,
             session_id=request.session_id,
-            enable_thinking=request.enable_thinking,
+            enable_thinking=enable_thinking,
             project_dir=project_dir,
             stream=request.stream,
             tool_response=request.tool_response,