diff --git a/python/examples/bert/bert_client.py b/python/examples/bert/bert_client.py
index b72d17f142c65bafe8ef13e1a963aacce6b3e821..362ac67915870af9d11209520daa61daa95082c1 100644
--- a/python/examples/bert/bert_client.py
+++ b/python/examples/bert/bert_client.py
@@ -14,15 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import sys
-import numpy as np
-import paddlehub as hub
-import ujson
-import random
-import time
-from paddlehub.common.logger import logger
-import socket
 from paddle_serving_client import Client
 from paddle_serving_client.utils import benchmark_args
 from paddle_serving_app.reader import ChineseBertReader