diff --git a/mcwl-pay/src/main/java/com/mcwl/pay/service/impl/AliPayServiceImpl.java b/mcwl-pay/src/main/java/com/mcwl/pay/service/impl/AliPayServiceImpl.java
index 5b66e41..e70a0e1 100644
--- a/mcwl-pay/src/main/java/com/mcwl/pay/service/impl/AliPayServiceImpl.java
+++ b/mcwl-pay/src/main/java/com/mcwl/pay/service/impl/AliPayServiceImpl.java
@@ -216,7 +216,7 @@ public class AliPayServiceImpl implements AliPayService {
         AlipayTradePrecreateResponse payResponse = Factory.Payment.FaceToFace()
                 .preCreate(tradeEntity.getProductName(),
                         tradeEntity.getCode(),
-                        tradeEntity.getPaymentAmount().toString());
+                        paymentAmount.toString());
         // 缓存到redis
         redisCache.setCacheObject(tradeEntity.getCode(), JSONUtil.toJsonStr(tradeEntity), 30, TimeUnit.SECONDS);
         //参照官方文档响应示例，解析返回结果