diff --git a/conf/ali_sync.yaml b/conf/ali_sync.yaml
index 9cd4fda..bf333a5 100644
--- a/conf/ali_sync.yaml
+++ b/conf/ali_sync.yaml
@@ -28,6 +28,12 @@ CHECK_EXIST: true
 # 设置当文件已存在时，是否强制覆盖文件，如果否，则当文件大小或文件类型不一致时才会覆盖
 FORCE_OVERRIDE: false
 
+# 设置同步的并发线程数
+THREADS_NUM_FOR_SYNC: 3
+
+# 限制每个线程同步数据的速率为1Mb/s=1048576B/s，单位：B/s
+SYNC_SPEED: 1048576
+
 # 设置多少个线程同时添加离线任务
 THREADS_NUM_FOR_ADD_OFFLINE_TASK: 20
 
diff --git a/src/ali_sync.py b/src/ali_sync.py
index 3c0733a..f4ca4cd 100644
--- a/src/ali_sync.py
+++ b/src/ali_sync.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python2
 # coding:utf-8
 
+import ssl
 import base64
 import copy
 import errno
@@ -19,6 +20,8 @@
 from botocore.client import Config
 
 from pykit import jobq
+from pykit import http
+from pykit import awssign
 
 report_state_lock = threading.RLock()
 
@@ -341,6 +344,64 @@ def compare_file(result, th_status):
     return True
 
 
+def upload_file(resp_object, result, ali_file_info):
+    uri = '/%s/%s' % (cnf['BAISHAN_BUCKET_NAME'], result['s3_key'])
+    verb = 'PUT'
+
+    endpoint = cnf['BAISHAN_ENDPOINT']
+    https_ctx = None
+    port = 80
+    if 'http://' in endpoint:
+        Host = endpoint[len('http://'):]
+    elif 'https://' in endpoint:
+        Host = endpoint[len('https://'):]
+        https_ctx = ssl._create_unverified_context()
+        port = 443
+    else:
+        Host = endpoint
+
+    headers = {
+        'Content-Length': resp_object.content_length,
+        'Host': Host,
+        'x-amz-acl': cnf['FILE_ACL'],
+        'Content-Type': ali_file_info['content_type'],
+    }
+
+    for k, v in ali_file_info['meta'].items():
+        headers['x-amz-meta-' + k] = v
+
+    request = {
+        'verb': verb,
+        'uri': uri,
+        'headers': headers,
+    }
+
+    sign = awssign.Signer(cnf['BAISHAN_ACCESS_KEY'], cnf['BAISHAN_SECRET_KEY'])
+    sign.add_auth(request, query_auth=False, expires=120)
+
+    cli = http.Client(Host, port=port, https_context=https_ctx)
+    cli.send_request(request['uri'], verb, request['headers'])
+
+    send_size = 0
+    start_time = time.time()
+    while True:
+        buf = resp_object.read(1024 * 1024)
+        if buf == '':
+            break
+
+        end_time = time.time()
+        if cnf['SYNC_SPEED'] is not None:
+            expect_time = send_size / cnf['SYNC_SPEED']
+            act_time = end_time - start_time
+            time_diff = expect_time - act_time
+
+            if time_diff > 0:
+                time.sleep(time_diff)
+
+        cli.send_body(buf)
+        send_size += 1024 * 1024
+
+
 def pipe_file(result, th_status):
     result['piped'] = True
     th_status['piped_n'] = th_status.get('piped_n', 0) + 1
@@ -355,19 +416,13 @@ def update_pipe_progress(done_bytes, total_bytes):
             file_object.key, progress_callback=update_pipe_progress)
 
         ali_file_info = validate_and_extract_ali_file_info(resp_object, result)
-        if ali_file_info == None:
+        if ali_file_info is None:
 
             result['pipe_failed'] = True
             th_status['pipe_failed_n'] = th_status.get('pipe_failed_n', 0) + 1
             return False
 
-        extra_args = {
-            'ACL': cnf['FILE_ACL'],
-            'ContentType': ali_file_info['content_type'],
-            'Metadata': ali_file_info['meta'],
-        }
-        s3_client.upload_fileobj(resp_object, cnf['BAISHAN_BUCKET_NAME'],
-                                 result['s3_key'], ExtraArgs=extra_args)
+        upload_file(resp_object, result, ali_file_info)
 
         result['pipe_succeed'] = True
         th_status['pipe_succeed_n'] = th_status.get('pipe_succeed_n', 0) + 1
@@ -498,7 +553,7 @@ def update_sync_stat(result):
         elif 'default_not_override' in result:
             ali_sync_state['default_not_override'] += 1
 
-    if not 'piped' in result:
+    if 'piped' not in result:
         return
 
     ali_sync_state['piped'] += 1
@@ -528,7 +583,7 @@ def update_sync_stat(result):
     ali_sync_state['pipe_succeed'] += 1
     ali_sync_state['pipe_succeed_bytes'] += file_object.size
 
-    if not 'compared' in result:
+    if 'compared' not in result:
         return
 
     if 'compare_failed' in result:
@@ -697,7 +752,7 @@ def sync():
     try:
         report_sess = {'stop': False}
         report_th = _thread(report, (report_sess,))
-        jobq.run(iter_files(), [(sync_one_file, 3),
+        jobq.run(iter_files(), [(sync_one_file, cnf['THREADS_NUM_FOR_SYNC']),
                                 (update_sync_stat, 1),
                                 ])