diff --git a/metagpt/provider/base_llm.py b/metagpt/provider/base_llm.py
index c482aaf35..dbef15fa1 100644
--- a/metagpt/provider/base_llm.py
+++ b/metagpt/provider/base_llm.py
@@ -6,14 +6,10 @@
 @File    : base_llm.py
 @Desc    : mashenquan, 2023/8/22. + try catch
 """
-import re
 import json
 from abc import ABC, abstractmethod
 from typing import Optional
 
-from metagpt.logs import logger
-from metagpt.utils.common import CodeParser
-
 
 class BaseLLM(ABC):
     """LLM API abstract class, requiring all inheritors to provide a series of standard capabilities"""
@@ -122,30 +118,6 @@ class BaseLLM(ABC):
         """
         return rsp.get("choices")[0]["message"]["tool_calls"][0]["function"]
 
-    def _parse_arguments(self, arguments: str) -> dict:
-        """parse arguments in openai function call"""
-        if 'langugae' not in arguments and 'code' not in arguments:
-            logger.warning(f"Not found `code`, `language`, We assume it is pure code:\n {arguments}\n. ")
-            return {'language': 'python', 'code': arguments}
-
-        # 匹配language
-        language_pattern = re.compile(r'[\"\']?language[\"\']?\s*:\s*["\']([^"\']+?)["\']', re.DOTALL)
-        language_match = language_pattern.search(arguments)
-        language_value = language_match.group(1) if language_match else None
-
-        # 匹配code
-        code_pattern = r'(["\']{3}|["])([\s\S]*?)\1'
-        try:
-            code_value = re.findall(code_pattern, arguments)[-1][-1]
-        except Exception as e:
-            logger.error(f"{e}, when re.findall({code_pattern}, {arguments})")
-            code_value = None
-
-        if code_value is None:
-            raise ValueError(f"Parse code error for {arguments}")
-        # arguments只有code的情况
-        return {'language': language_value, 'code': code_value}
-
     def get_choice_function_arguments(self, rsp: dict) -> dict:
         """Required to provide the first function arguments of choice.
 
@@ -153,25 +125,7 @@ class BaseLLM(ABC):
         :return dict: return the first function arguments of choice, for example,
             {'language': 'python', 'code': "print('Hello, World!')"}
         """
-        try:
-            arguments: str = self.get_choice_function(rsp)["arguments"]
-            return json.loads(arguments, strict=False)
-        except json.decoder.JSONDecodeError as e:
-            logger.debug(f"Got JSONDecodeError for {arguments}, we will use RegExp to parse code, \n {e}")
-            return self._parse_arguments(arguments)
-        except KeyError as e:
-            if 'tool_calls' in e.args:
-                txt_rsp = self.get_choice_text(rsp)
-                # find code
-                code = CodeParser.parse_code(None, txt_rsp, lang='python')
-                if code != txt_rsp:
-                    return {'language': 'python', 'code': code}
-                # no code
-                return {'language': 'markdown', 'code': txt_rsp}
-            raise e
-        except Exception as e:
-            logger.error(f"Got error `{e}` for parsing\n {rsp}\n")
-            return {}
+        return json.loads(self.get_choice_function(rsp)["arguments"], strict=False)
 
     def messages_to_prompt(self, messages: list[dict]):
         """[{"role": "user", "content": msg}] to user: <msg> etc."""