diff --git a/main/xiaozhi-server/core/providers/llm/coze/coze.py b/main/xiaozhi-server/core/providers/llm/coze/coze.py
index b1b14d91..f4139cb6 100644
--- a/main/xiaozhi-server/core/providers/llm/coze/coze.py
+++ b/main/xiaozhi-server/core/providers/llm/coze/coze.py
@@ -7,6 +7,7 @@ import os
 # official coze sdk for Python [cozepy](https://github.com/coze-dev/coze-py)
 from cozepy import COZE_CN_BASE_URL
 from cozepy import Coze, TokenAuth, Message, ChatStatus, MessageContentType, ChatEventType  # noqa
+from core.providers.llm.system_prompt import get_system_prompt_for_function
 
 TAG = __name__
 logger = setup_logging()
@@ -47,4 +48,24 @@ class LLMProvider(LLMProviderBase):
         ):
             if event.event == ChatEventType.CONVERSATION_MESSAGE_DELTA:
                 print(event.message.content, end="", flush=True)
-                yield event.message.content
\ No newline at end of file
+                yield event.message.content
+
+    def response_with_functions(self, session_id, dialogue, functions=None):    
+        if len(dialogue) == 2 and functions is not None and len(functions) > 0:
+            # 第一次调用llm， 取最后一条用户消息，附加tool提示词
+            last_msg = dialogue[-1]["content"]
+            function_str = json.dumps(functions, ensure_ascii=False)
+            modify_msg = get_system_prompt_for_function(function_str) + last_msg
+            dialogue[-1]["content"] = modify_msg 
+
+        # 如果最后一个是 role="tool"，附加到user上
+        if len(dialogue) > 1 and dialogue[-1]["role"] == "tool":
+            assistant_msg = "tool call result: " + dialogue[-1]["content"]
+            while len(dialogue) > 1 :
+                if dialogue[-1]["role"] == "user":
+                    dialogue[-1]["content"] += assistant_msg
+                    break
+                dialogue.pop()
+        
+        for token in self.response(session_id, dialogue):
+            yield token, None
\ No newline at end of file