diff --git a/deploy/python/build_system.py b/deploy/python/build_system.py
deleted file mode 100644
index ff660776f1886398cfb4ac0bf5875c8425c21d4e..0000000000000000000000000000000000000000
--- a/deploy/python/build_system.py
+++ /dev/null
@@ -1,91 +0,0 @@
-# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-import os
-import sys
-
-__dir__ = os.path.dirname(os.path.abspath(__file__))
-sys.path.append(os.path.abspath(os.path.join(__dir__, '../')))
-
-import copy
-import cv2
-import numpy as np
-from tqdm import tqdm
-
-from python.predict_rec import RecPredictor
-from vector_search import Graph_Index
-
-from utils import logger
-from utils import config
-
-
-def split_datafile(data_file, image_root, delimiter="\t"):
-    '''
-        data_file: image path and info, which can be splitted by spacer 
-        image_root: image path root
-        delimiter: delimiter 
-    '''
-    gallery_images = []
-    gallery_docs = []
-    with open(data_file) as f:
-        lines = f.readlines()
-        for i, line in enumerate(lines):
-            line = line.strip().split(delimiter)
-            image_file = os.path.join(image_root, line[0])
-            image_doc = line[1] 
-            gallery_images.append(image_file)
-            gallery_docs.append(image_doc)
-
-    return gallery_images, gallery_docs
-
-
-class SystemBuilder(object):
-    def __init__(self, config):
-
-        self.config = config
-        self.rec_predictor = RecPredictor(config)
-        assert 'IndexProcess' in config.keys(), "Index config not found ... "
-        self.build(config['IndexProcess'])
-
-
-    def build(self, config):
-        '''
-            build index from scratch
-        '''
-        gallery_images, gallery_docs = split_datafile(config['data_file'], 
-            config['image_root'], config['delimiter'])
-
-        # extract gallery features
-        gallery_features = np.zeros([len(gallery_images), 
-            config['embedding_size']], dtype=np.float32)
-
-        for i, image_file in enumerate(tqdm(gallery_images)):
-            img = cv2.imread(image_file)[:, :, ::-1]
-            rec_feat = self.rec_predictor.predict(img)
-            gallery_features[i,:] = rec_feat
-
-        # train index 
-        self.Searcher = Graph_Index(dist_type=config['dist_type']) 
-        self.Searcher.build(gallery_vectors=gallery_features, gallery_docs=gallery_docs, 
-            pq_size=config['pq_size'], index_path=config['index_path'])
-            
-
-def main(config):
-    system_builder = SystemBuilder(config)
-    return
-
-
-if __name__ == "__main__":
-    args = config.parse_args()
-    config = config.get_config(args.config, overrides=args.override, show=True)
-    main(config)