diff --git a/domain/model/groupPower_m/group_grade.go b/domain/model/groupPower_m/group_grade.go
index da5cf01659e8908c42155eb5aed5a0cf5010cdd9..92706e5e745786c07c3ed7aafe6d91156a78190d 100644
--- a/domain/model/groupPower_m/group_grade.go
+++ b/domain/model/groupPower_m/group_grade.go
@@ -144,8 +144,8 @@ func IncrGroupPowerExpOnMic(model *domain.Model, groupPowerId, userId mysql.ID)
 		return err
 	}
 	model.Redis.Expire(model, key, time.Hour*24) // ttl 一天
-	// 每日最多1800经验 = 18分钟
-	if minutes > 18 {
+	// 每日最多1800经验 = 18个10分钟 = 180分钟
+	if minutes > 180 {
 		return nil
 	}
 	if minutes%10 == 0 {