diff --git a/video-gen-api/app/services/payment.py b/video-gen-api/app/services/payment.py
index 28bbb017..11dbca61 100644
--- a/video-gen-api/app/services/payment.py
+++ b/video-gen-api/app/services/payment.py
@@ -211,28 +211,6 @@ _alipay_client = None
 _alipay_client_app_id = None
 
 
-def _format_alipay_key(key: str) -> str:
-    """
-    格式化支付宝密钥，移除PEM头部和尾部，并清理所有空白字符。
-    """
-    if not key:
-        return ""
-    # 移除首尾空白
-    key = key.strip()
-    # 移除 PEM 头部和尾部
-    key = key.replace("-----BEGIN RSA PRIVATE KEY-----", "")
-    key = key.replace("-----BEGIN PRIVATE KEY-----", "")
-    key = key.replace("-----END RSA PRIVATE KEY-----", "")
-    key = key.replace("-----END PRIVATE KEY-----", "")
-    key = key.replace("-----BEGIN PUBLIC KEY-----", "")
-    key = key.replace("-----END PUBLIC KEY-----", "")
-    key = key.replace("-----BEGIN ALIPAY PUBLIC KEY-----", "")
-    key = key.replace("-----END ALIPAY PUBLIC KEY-----", "")
-    # 移除所有空白字符（换行、空格、制表符等）
-    key = "".join(key.split())
-    return key
-
-
 def _get_alipay_client(app_id: str, private_key: str, public_key: str, gateway: str = ""):
     """Get or create an Alipay client. Recreated if app_id changes."""
     global _alipay_client, _alipay_client_app_id
@@ -250,23 +228,18 @@ def _get_alipay_client(app_id: str, private_key: str, public_key: str, gateway:
         )
         return None
 
-    # 格式化私钥和公钥
-    formatted_private_key = _format_alipay_key(private_key)
-    formatted_public_key = _format_alipay_key(public_key)
-    
     config = AlipayClientConfig()
     config.server_url = gateway or "https://openapi.alipay.com/gateway.do"
     config.app_id = app_id
-    config.app_private_key = formatted_private_key
-    config.alipay_public_key = formatted_public_key
+    config.app_private_key = private_key
+    config.alipay_public_key = public_key
     config.sign_type = "RSA2"
     config.charset = "utf-8"
     
     try:
         _alipay_client = DefaultAlipayClient(config, logger)
         _alipay_client_app_id = app_id
-        logger.info("Alipay client initialized successfully")
-    except Exception as e:
+    except Exception:
         logger.exception("Failed to initialize Alipay client")
         _alipay_client = None
         _alipay_client_app_id = None