diff --git a/unipay/providers/alipay.py b/unipay/providers/alipay.py
index 3cb7456..74984eb 100644
--- a/unipay/providers/alipay.py
+++ b/unipay/providers/alipay.py
@@ -107,7 +107,9 @@ class AlipayGateway(Gateway):
 			"timestamp": time.strftime("%Y-%m-%d %H:%M:%S"),
 			"version": "1.0",
 			"notify_url": payload["notify_url"],
-			"biz_content": json.dumps(biz_content, separators=(",", ":"))
+			"biz_content": json.dumps(biz_content, 
+								ensure_ascii=False, 
+								separators=(",", ":"))
 		}
 
 		# 生成签名