diff --git a/CoreCms.Net.Services/Pay/WeChatPayServices.cs b/CoreCms.Net.Services/Pay/WeChatPayServices.cs
index d7a27886652d3128de88a907d3997e45ec9c348a..c586cea338ff40e7d4c3771c8949852d42e657ea 100644
--- a/CoreCms.Net.Services/Pay/WeChatPayServices.cs
+++ b/CoreCms.Net.Services/Pay/WeChatPayServices.cs
@@ -105,7 +105,7 @@ namespace CoreCms.Net.Services
 
             var request = new WeChatPayUnifiedOrderRequest
             {
-                Body = entity.payTitle.Length > 127 ? entity.payTitle[..125] : entity.payTitle,
+                Body = entity.payTitle.Length > 50 ? entity.payTitle[..50] : entity.payTitle,
                 OutTradeNo = entity.paymentId,
                 TotalFee = Convert.ToInt32(entity.money * 100),
                 SpBillCreateIp = entity.ip,