diff --git a/configs/route_sys_prompts/optional_chat_prompt.txt b/configs/route_sys_prompts/optional_chat_prompt.txt
new file mode 100644
index 0000000..ede1ef0
--- /dev/null
+++ b/configs/route_sys_prompts/optional_chat_prompt.txt
@@ -0,0 +1 @@
+create a chat_prompt.txt to overwrite the system prompt from xiaozhi
\ No newline at end of file
diff --git a/configs/route_sys_prompts/route_prompt.txt b/configs/route_sys_prompts/route_prompt.txt
new file mode 100644
index 0000000..c46bffb
--- /dev/null
+++ b/configs/route_sys_prompts/route_prompt.txt
@@ -0,0 +1 @@
+Return a JSON object with 'step'.the value should be one of 'chat' or 'order' based on the user input
diff --git a/configs/route_sys_prompts/tool_prompt.txt b/configs/route_sys_prompts/tool_prompt.txt
new file mode 100644
index 0000000..a2f8359
--- /dev/null
+++ b/configs/route_sys_prompts/tool_prompt.txt
@@ -0,0 +1 @@
+You must use tool to complete the possible task
diff --git a/lang_agent/graphs/routing.py b/lang_agent/graphs/routing.py
index 7dfaed9..da09a5d 100644
--- a/lang_agent/graphs/routing.py
+++ b/lang_agent/graphs/routing.py
@@ -9,6 +9,7 @@ import matplotlib.pyplot as plt
 import jax
 import os.path as osp
 import commentjson
+import glob
 
 from lang_agent.config import KeyConfig
 from lang_agent.tool_manager import ToolManager, ToolManagerConfig
@@ -45,7 +46,8 @@ class RoutingConfig(KeyConfig):
     def __post_init__(self):
         super().__post_init__()
         if self.sys_promp_json is None:
-            self.sys_promp_json = osp.join(osp.dirname(osp.dirname(osp.dirname(__file__))), "configs", "route_sys_prompts.json")
+            # self.sys_promp_json = osp.join(osp.dirname(osp.dirname(osp.dirname(__file__))), "configs", "route_sys_prompts.json")
+            self.sys_promp_json = osp.join(osp.dirname(osp.dirname(osp.dirname(__file__))), "configs", "route_sys_prompts")
             logger.warning(f"config_f was not provided. Using default: {self.sys_promp_json}")
         
         assert osp.exists(self.sys_promp_json), f"config_f {self.sys_promp_json} does not exist."
@@ -119,8 +121,31 @@ class RoutingGraph(GraphBase):
         self.chat_model = create_agent(self.llm, self._get_chat_tools(tool_manager), checkpointer=self.memory)
         self.tool_model = create_agent(self.llm, tool_manager.get_list_langchain_tools(), checkpointer=self.memory)
 
-        with open(self.config.sys_promp_json , "r") as f:
-            self.prompt_dict:Dict[str, str] = commentjson.load(f)
+        self._load_sys_prompts()
+    
+    def _load_sys_prompts(self):
+        if "json" in self.config.sys_promp_json[-5:]:
+            logger.info("loading sys prompt from json")
+            with open(self.config.sys_promp_json , "r") as f:
+                self.prompt_dict:Dict[str, str] = commentjson.load(f)
+
+        elif osp.isdir(self.config.sys_promp_json):
+            logger.info("loading sys_prompt from txt")
+            sys_fs = glob.glob(osp.join(self.config.sys_promp_json, "*.txt"))
+            sys_fs = sorted([e for e in sys_fs if not ("optional" in e)])
+            assert len(sys_fs) <= 3, "AT MOST 3 PROMPT!"
+            self.prompt_dict = {}
+            for sys_f in sys_fs:
+                key = osp.basename(sys_f).split(".")[0]
+                with open(sys_f, "r") as f:
+                    self.prompt_dict[key] = f.read()
+        else:
+            err_msg = f"{self.config.sys_promp_json} is not supported"
+            assert 0, err_msg
+        
+        for k, _ in self.prompt_dict.items():
+            logger.info(f"loaded {k} system prompt")
+
 
 
     def _router_call(self, state:State):