diff --git a/business/jxstore/act/act.go b/business/jxstore/act/act.go
index 8fb0b81c9..42ef9ac13 100644
--- a/business/jxstore/act/act.go
+++ b/business/jxstore/act/act.go
@@ -21,7 +21,7 @@ import (
 const (
 	DefActSkuStock = 200 // 缺省活动库存
 
-	maxDiscount4SkuSecKill    = 99
+	maxDiscount4SkuSecKill    = 80
 	minDiscount4SkuDirectDown = 0
 )