diff --git a/README.md b/README.md
index 777a965..068d245 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ from towhee import pipe, ops
 
 p = (
     pipe.input('messages')
-        .map('messages', 'answer', ops.LLM.Ernie(api_type=EB_API_TYPE, access_token=EB_ACCESS_TOKEN))
+        .map('messages', 'answer', ops.LLM.Ernie(eb_api_type=EB_API_TYPE, eb_access_token=EB_ACCESS_TOKEN))
         .output('answer')
 )
 
@@ -58,7 +58,7 @@ p = (
     pipe.input('question', 'docs', 'history')
         .map(('question', 'docs', 'history'), 'prompt', ops.prompt.template(temp, ['question', 'context']))
         .map('prompt', 'answer',
-             ops.LLM.Ernie(api_type=EB_API_TYPE, access_token=EB_ACCESS_TOKEN)
+             ops.LLM.Ernie(eb_api_type=EB_API_TYPE, eb_access_token=EB_ACCESS_TOKEN)
              )
         .output('answer')
 )
@@ -72,16 +72,16 @@ answer = p(question, docs, history).get()[0]
 
 Create the operator via the following factory method:
 
-***LLM.Ernie(api_type: str, access_token: str)***
+***LLM.Ernie(eb_api_type: str, eb_access_token: str)***
 
 **Parameters:**
 
 
-***api_type***: *str=None*
+***eb_api_type***: *str=None*
 
 The API type in string, defaults to None. If None, it will use the environment variable `EB_API_TYPE`. Refer to [authentication](https://github.com/PaddlePaddle/ERNIE-Bot-SDK/blob/develop/docs/authentication.md) for more details.
 
-***access_token***: *str=None*
+***eb_access_token***: *str=None*
 
 The access token in string, defaults to None. If None, it will use the environment variable `EB_ACCESS_TOKEN`. Refer to [authentication](https://github.com/PaddlePaddle/ERNIE-Bot-SDK/blob/develop/docs/authentication.md) for more details.
 
diff --git a/ernie_chat.py b/ernie_chat.py
index 80db8ad..b8fcbbd 100644
--- a/ernie_chat.py
+++ b/ernie_chat.py
@@ -25,12 +25,12 @@ class ErnieChat(PyOperator):
 
     def __init__(self,
                  model_name: str = 'ernie-bot-turbo',
-                 api_type: str = None,
-                 access_token: str = None,
+                 eb_api_type: str = None,
+                 eb_access_token: str = None,
                  **kwargs
                  ):
-        erniebot.api_type = api_type or os.getenv('EB_API_TYPE')
-        erniebot.access_token = access_token or os.getenv('EB_ACCESS_TOKEN')
+        erniebot.api_type = eb_api_type or os.getenv('EB_API_TYPE')
+        erniebot.access_token = eb_access_token or os.getenv('EB_ACCESS_TOKEN')
         self._model = model_name
         self.stream = kwargs.pop('stream') if 'stream' in kwargs else False
         self.kwargs = kwargs