diff --git a/Src/Dlhis.Canteen/EMealVoucher/Services/Implements/EMealVoucherService.cs b/Src/Dlhis.Canteen/EMealVoucher/Services/Implements/EMealVoucherService.cs
index 629dc340..4b562870 100644
--- a/Src/Dlhis.Canteen/EMealVoucher/Services/Implements/EMealVoucherService.cs
+++ b/Src/Dlhis.Canteen/EMealVoucher/Services/Implements/EMealVoucherService.cs
@@ -87,7 +87,8 @@ public class EMealVoucherService : IEMealVoucherService
         eMealVoucherDetail.ThrowIfNull("无效地址");
         var eMealVoucher = await _dbContext.Queryable<EMealVoucherEntity>().Where(x => x.No == eMealVoucherDetail.No).SingleAsync();
 
-        var originData = string.Concat(eMealVoucher.No, ":", eMealVoucher.Code, ":", eMealVoucherDetail.IdNo);
+        var ts = DateTimeOffset.Now.ToUnixTimeMilliseconds().ToString().Reverse().Join(string.Empty);
+        var originData = string.Concat(eMealVoucher.No, ":", ts, ":", eMealVoucher.Code, ":", eMealVoucherDetail.IdNo);
 
         var qrCode = "02" + originData.ToArray().Select(x =>
         {