diff --git a/ucloud/__init__.py b/ucloud/__init__.py
index 44373b0..438f480 100644
--- a/ucloud/__init__.py
+++ b/ucloud/__init__.py
@@ -1,4 +1,6 @@
 # 公钥
+from ufile import config
+
 PUBLIC_KEY = "4Z7QYI7qml36QRjcCjKrls7aHl1R6H6uq"
 # 私钥
 PRIVATE_KEY = "FIdW1Kev1Ge3K7GHXzSLyGG1wTnaG6LE9BxmIVubcCaG"
@@ -10,3 +12,6 @@ UPLOAD_SUFFIX = ".cn-sh2.ufileos.com"
 DOWNLOAD_SUFFIX = ".cn-sh2.ufileos.com"
 # 私空间文件地址过期时间(秒)
 PRIVATE_EXPIRES = 3600
+
+# 设置默认请求超时时间
+config.set_default(connection_timeout=60)
diff --git a/ucloud/ucloud.py b/ucloud/ucloud.py
index 37e87f7..a62c940 100644
--- a/ucloud/ucloud.py
+++ b/ucloud/ucloud.py
@@ -1,5 +1,6 @@
 # https://github.com/ucloud/ufile-sdk-python
 import logging
+from time import sleep
 
 from ufile import filemanager
 
@@ -9,34 +10,49 @@ UFILE_HANDLER = filemanager.FileManager(PUBLIC_KEY, PRIVATE_KEY, UPLOAD_SUFFIX,
 
 
 def get_private_url(key, bucket=BUCKET):
-    # 判断文件是否存在
-    _, resp = UFILE_HANDLER.head_file(bucket, key)
-    if resp.status_code != 200:
-        logging.warning(f"uCloud中未找到({key})! status: {resp.status_code} error: {resp.error}")
-        return None
+    for i in range(3):
+        # 判断文件是否存在
+        _, resp = UFILE_HANDLER.head_file(bucket, key)
+        if resp.status_code == -1:
+            logging.warning(f"uCloud连接失败!即将重试...")
+            sleep(1)
+            continue
+        if resp.status_code != 200:
+            logging.warning(f"uCloud中未找到({key})! status: {resp.status_code} error: {resp.error}")
+            return None
 
-    # 获取公有空间下载url
-    # url = get_ufile_handler.public_download_url(bucket, key)
+        # 获取公有空间下载url
+        # url = get_ufile_handler.public_download_url(bucket, key)
 
-    # 获取私有空间下载url, expires为下载链接有效期，单位为秒
-    url = UFILE_HANDLER.private_download_url(bucket, key, expires=PRIVATE_EXPIRES)
-    return url
+        # 获取私有空间下载url, expires为下载链接有效期，单位为秒
+        url = UFILE_HANDLER.private_download_url(bucket, key, expires=PRIVATE_EXPIRES)
+        return url
 
 
 def copy_file(source_bucket, source_key, target_bucket, target_key):
-    # 拷贝文件
-    ret, resp = UFILE_HANDLER.copy(target_bucket, target_key, source_bucket, source_key)
-    if resp.status_code != 200:
-        logging.warning(
-            f"将({source_key})从({source_bucket})拷贝到({target_bucket})失败! status: {resp.status_code} error: {resp.error}")
-        return False
-    return True
+    for i in range(3):
+        # 拷贝文件
+        ret, resp = UFILE_HANDLER.copy(target_bucket, target_key, source_bucket, source_key)
+        if resp.status_code == -1:
+            logging.warning(f"uCloud连接失败!即将重试...")
+            sleep(1)
+            continue
+        if resp.status_code != 200:
+            logging.warning(
+                f"将({source_key})从({source_bucket})拷贝到({target_bucket})失败! status: {resp.status_code} error: {resp.error}")
+            return False
+        return True
 
 
 def upload_file(key, file_path, bucket=BUCKET):
-    # 普通上传文件至空间
-    ret, resp = UFILE_HANDLER.putfile(bucket, key, file_path, header=None)
-    if resp.status_code != 200:
-        logging.warning(f"上传({key})失败! status: {resp.status_code} error: {resp.error}")
-        return False
-    return True
+    for i in range(3):
+        # 普通上传文件至空间
+        ret, resp = UFILE_HANDLER.putfile(bucket, key, file_path, header=None)
+        if resp.status_code == -1:
+            logging.warning(f"uCloud连接失败!即将重试...")
+            sleep(1)
+            continue
+        if resp.status_code != 200:
+            logging.warning(f"上传({key})失败! status: {resp.status_code} error: {resp.error}")
+            return False
+        return True