diff --git a/tests/python_client/base/client_base.py b/tests/python_client/base/client_base.py
index 60d9e0a4bf..0886fc4673 100644
--- a/tests/python_client/base/client_base.py
+++ b/tests/python_client/base/client_base.py
@@ -150,10 +150,13 @@ class TestcaseBase(Base):
                 uri = cf.param_info.param_uri
             else:
                 uri = "http://" + cf.param_info.param_host + ":" + str(cf.param_info.param_port)
-            self.connection_wrap.connect(alias=DefaultConfig.DEFAULT_USING,uri=uri,token=cf.param_info.param_token)
-            res, is_succ = self.connection_wrap.MilvusClient(uri=uri,
-                                                             token=cf.param_info.param_token)
-            self.client = MilvusClient(uri=uri, token=cf.param_info.param_token)
+            if cf.param_info.param_token:
+                token = cf.param_info.param_token
+            else:
+                token = f"{ct.default_user}:{ct.default_password}"
+            self.connection_wrap.connect(alias=DefaultConfig.DEFAULT_USING, uri=uri, token=token)
+            res, is_succ = self.connection_wrap.MilvusClient(uri=uri, token=token)
+            self.client = MilvusClient(uri=uri, token=token)
         else:
             if cf.param_info.param_user and cf.param_info.param_password:
                 res, is_succ = self.connection_wrap.connect(alias=DefaultConfig.DEFAULT_USING,
@@ -168,27 +171,29 @@ class TestcaseBase(Base):
                                                             port=cf.param_info.param_port)
 
             uri = "http://" + cf.param_info.param_host + ":" + str(cf.param_info.param_port)
-            self.client = MilvusClient(uri=uri, token=cf.param_info.param_token)
+            if cf.param_info.param_token:
+                token = cf.param_info.param_token
+            else:
+                token = f"{ct.default_user}:{ct.default_password}"
+            self.client = MilvusClient(uri=uri, token=token)
         server_version = utility.get_server_version()
         log.info(f"server version: {server_version}")
         return res
 
-
     def get_tokens_by_analyzer(self, text, analyzer_params):
         if cf.param_info.param_uri:
             uri = cf.param_info.param_uri
         else:
             uri = "http://" + cf.param_info.param_host + ":" + str(cf.param_info.param_port)
-
-        client = MilvusClient(
-            uri = uri,
+        if cf.param_info.param_token:
             token = cf.param_info.param_token
-        )
+        else:
+            token = f"{ct.default_user}:{ct.default_password}"
+        self.client = MilvusClient(uri=uri, token=token)
         res = client.run_analyzer(text, analyzer_params, with_detail=True, with_hash=True)
         tokens = [r['token'] for r in res.tokens]
         return tokens
 
-
     # def init_async_milvus_client(self):
     #     uri = cf.param_info.param_uri or f"http://{cf.param_info.param_host}:{cf.param_info.param_port}"
     #     kwargs = {