diff --git a/YLErpWeb/Middleware/RefreshTokenMiddleware.cs b/YLErpWeb/Middleware/RefreshTokenMiddleware.cs
index 15517b11..79799b28 100644
--- a/YLErpWeb/Middleware/RefreshTokenMiddleware.cs
+++ b/YLErpWeb/Middleware/RefreshTokenMiddleware.cs
@@ -16,7 +16,8 @@ namespace YLErp.Web.Middleware
     public class RefreshTokenMiddleware
     {
         private readonly RequestDelegate _next;
-        private const int RefreshThreshold = 3600; // 1小时阈值
+        // 续期阈值设为Token过期时间的20%，避免过于频繁的续期
+        private static int RefreshThreshold => (int)(AuthHelper.ExpireInSeconds * 0.2);
 
         /// <summary>
         /// 构造函数