diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100755
index 0000000000000000000000000000000000000000..d8112837dc9627bc2e501940b8e97c89e97c45ff
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,52 @@
+repos:
+-   repo: https://github.com/Lucas-C/pre-commit-hooks.git
+    sha: v1.0.1
+    hooks:
+    -   id: remove-crlf
+        files: (?!.*third_party)^.*$ | (?!.*book)^.*$
+-   repo: https://github.com/PaddlePaddle/mirrors-yapf.git
+    sha: 0d79c0c469bab64f7229c9aca2b1186ef47f0e37
+    hooks:
+    -   id: yapf
+        files: (.*\.(py|bzl)|BUILD|.*\.BUILD|WORKSPACE)$
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    sha: 5bf6c09bfa1297d3692cadd621ef95f1284e33c0
+    hooks:
+    -   id: check-added-large-files
+    -   id: check-merge-conflict
+    -   id: check-symlinks
+    -   id: detect-private-key
+        files: (?!.*third_party)^.*$ | (?!.*book)^.*$
+    -   id: end-of-file-fixer
+-   repo: local
+    hooks:
+    -   id: clang-format-with-version-check
+        name: clang-format
+        description: Format files with ClangFormat.
+        entry: bash ./tools/codestyle/clang_format.hook -i
+        language: system
+        files: \.(c|cc|cxx|cpp|cu|h|hpp|hxx|proto)$
+-   repo: local
+    hooks:
+    -   id: cpplint-cpp-source
+        name: cpplint
+        description: Check C++ code style using cpplint.py.
+        entry: bash ./tools/codestyle/cpplint_pre_commit.hook
+        language: system
+        files: \.(c|cc|cxx|cpp|cu|h|hpp|hxx)$
+-   repo: local
+    hooks:
+    -   id: pylint-doc-string
+        name: pylint
+        description: Check python docstring style using docstring_checker.
+        entry: bash ./tools/codestyle/pylint_pre_commit.hook
+        language: system
+        files: \.(py)$
+-   repo: local
+    hooks:
+    -   id: copyright_checker
+        name: copyright_checker
+        entry: python ./tools/codestyle/copyright.hook
+        language: system
+        files: \.(c|cc|cxx|cpp|cu|h|hpp|hxx|proto|py)$
+        exclude: (?!.*third_party)^.*$ | (?!.*book)^.*$
diff --git a/python/paddle_fl/paddle_fl/core/trainer/fl_trainer.py b/python/paddle_fl/paddle_fl/core/trainer/fl_trainer.py
index 65e171989aef8a08d4dd9fbe1135818b74a2bc51..fc696d417a104562639f8097df0e76032b9a13c7 100755
--- a/python/paddle_fl/paddle_fl/core/trainer/fl_trainer.py
+++ b/python/paddle_fl/paddle_fl/core/trainer/fl_trainer.py
@@ -19,6 +19,7 @@ import pickle
 from paddle.fluid.io import is_belong_to_optimizer
 from paddle_fl.paddle_fl.core.scheduler.agent_master import FLWorkerAgent
 import numpy
+import paddle_serving_client.io as serving_io
 import hmac
 import hashlib
 from .diffiehellman.diffiehellman import DiffieHellman
diff --git a/python/paddle_fl/paddle_fl/examples/deploy_serving_after_training/fl_trainer.py b/python/paddle_fl/paddle_fl/examples/deploy_serving_after_training/fl_trainer.py
index 9b6ccb6d1a1b01eed05e661f9d1c304803171d30..a65aff74a046840a99f61e7d8e5ea9c9814f804b 100644
--- a/python/paddle_fl/paddle_fl/examples/deploy_serving_after_training/fl_trainer.py
+++ b/python/paddle_fl/paddle_fl/examples/deploy_serving_after_training/fl_trainer.py
@@ -47,17 +47,6 @@ place = fluid.CPUPlace()
 trainer.start(place)
 print("scheduler_ep is {}, current_ep is {}".format(trainer._scheduler_ep,
                                                     trainer._current_ep))
-"""
-feed_vars = {}
-target_vars = {}
-for target in trainer._target_names:
-    tmp_target = trainer._main_program.block(0)._find_var_recursive(target)
-    target_vars[target] = tmp_target
-
-for feed in trainer._feed_names:
-    tmp_feed = trainer._main_program.block(0)._find_var_recursive(feed)
-    feed_vars[feed] = tmp_feed
-"""
 epoch_id = 0
 while not trainer.stop():
     if epoch_id > 10:
@@ -73,6 +62,4 @@ while not trainer.stop():
             break
     epoch_id += 1
     if epoch_id % 5 == 0:
-        #        trainer.save_inference_program(output_folder)
-        trainer.save_serving_model("test", "imdb_client_conf")
-#        serving_io.save_model("test","imdb_client_conf", feed_vars, target_vars, trainer._main_program)
+        trainer.save_serving_model("imdb_server_model", "imdb_client_conf")