diff --git a/domain/model/groupPower_m/group_grade.go b/domain/model/groupPower_m/group_grade.go
index 14b8a37fcb9c4709dfbacb1be15f4ac9ee49722c..963d738d890f832225def04043b0aa2d01f285f8 100644
--- a/domain/model/groupPower_m/group_grade.go
+++ b/domain/model/groupPower_m/group_grade.go
@@ -256,6 +256,30 @@ func IncrGroupPowerStarOnMic(model *domain.Model, groupPowerId, userId mysql.ID,
 		}
 		score := nowTs - curTs
 		err = IncrGroupPowerMonthStarScore(model, groupPowerId, userId, groupPower_e.GroupPowerStarTypeActive, mysql.Num(score), nowTs)
+		return err
+	})
+}
+
+// 增加势力上麦时长-家族之星
+// 事务操作
+func IncrGroupPowerStarOnMicDay(model *domain.Model, groupPowerId, userId mysql.ID, joinMicTimestamp int64) error {
+	return model.Transaction(func(model *domain.Model) error {
+		// 日统计
+		star, err := GetGroupPowerDayStar(model, groupPowerId, userId, groupPower_e.GroupPowerStarTypeActive)
+		curTs := joinMicTimestamp
+		nowTs := time.Now().Unix()
+		day0Ts := now.BeginningOfDay().Unix()
+		if err != nil && err != gorm.ErrRecordNotFound {
+			return err
+		}
+		if star != nil && joinMicTimestamp < star.LastCalTs { // 加入的时间比上次计算时间小
+			curTs = star.LastCalTs
+		}
+		// 跨天
+		if curTs < day0Ts {
+			curTs = day0Ts
+		}
+		score := nowTs - curTs
 		err = IncrGroupPowerDayStarScore(model, groupPowerId, userId, groupPower_e.GroupPowerStarTypeActive, mysql.Num(score), nowTs)
 		return err
 	})
diff --git a/domain/model/groupPower_m/group_star.go b/domain/model/groupPower_m/group_star.go
index 08b97a0b609f4b37746ab0bda18f99bdb8ac69f4..c796c52b170bd1e18d894c42ee59034ce04e4265 100644
--- a/domain/model/groupPower_m/group_star.go
+++ b/domain/model/groupPower_m/group_star.go
@@ -80,6 +80,17 @@ func IncrGroupPowerDayStarScore(model *domain.Model, groupPowerId, userId mysql.
 	return nil
 }
 
+// 获取家族之星分数
+// 允许返回gorm.ErrRecordNotFound
+func GetGroupPowerDayStar(model *domain.Model, groupPowerId, userId mysql.ID, _type groupPower_e.GroupPowerStarType) (*GroupPowerDayStar, error) {
+	res := new(GroupPowerDayStar)
+	date := time.Now()
+	if err := model.DB().Where("date = ? AND group_power_id = ? AND user_id = ? AND `type` = ?", date, groupPowerId, userId, _type).First(res).Error; err != nil {
+		return nil, err
+	}
+	return res, nil
+}
+
 // 获取家族之星分数
 // 允许返回gorm.ErrRecordNotFound
 func GetGroupPowerMonthStar(model *domain.Model, groupPowerId, userId mysql.ID, _type groupPower_e.GroupPowerStarType) (*GroupPowerMonthStar, error) {