diff --git a/internal/infrastructure/database/repositories/finance/gorm_recharge_record_repository.go b/internal/infrastructure/database/repositories/finance/gorm_recharge_record_repository.go
index fb141ef..0e2c775 100644
--- a/internal/infrastructure/database/repositories/finance/gorm_recharge_record_repository.go
+++ b/internal/infrastructure/database/repositories/finance/gorm_recharge_record_repository.go
@@ -437,6 +437,7 @@ func (r *GormRechargeRecordRepository) GetSystemAmountByDateRange(ctx context.Co
 }
 
 // GetSystemDailyStats 获取系统每日充值统计（排除赠送）
+// startDate 和 endDate 应该是时间对象，endDate 应该是结束日期当天的次日00:00:00，使用 < 而不是 <=
 func (r *GormRechargeRecordRepository) GetSystemDailyStats(ctx context.Context, startDate, endDate time.Time) ([]map[string]interface{}, error) {
 	var results []map[string]interface{}
 
@@ -447,13 +448,13 @@ func (r *GormRechargeRecordRepository) GetSystemDailyStats(ctx context.Context,
 		FROM recharge_records 
 		WHERE status = ?
 			AND recharge_type != ?
-			AND DATE(created_at) >= ?
-			AND DATE(created_at) <= ?
+			AND created_at >= ?
+			AND created_at < ?
 		GROUP BY DATE(created_at)
 		ORDER BY date ASC
 	`
 
-	err := r.GetDB(ctx).Raw(sql, entities.RechargeStatusSuccess, entities.RechargeTypeGift, startDate.Format("2006-01-02"), endDate.Format("2006-01-02")).Scan(&results).Error
+	err := r.GetDB(ctx).Raw(sql, entities.RechargeStatusSuccess, entities.RechargeTypeGift, startDate, endDate).Scan(&results).Error
 	if err != nil {
 		return nil, err
 	}