diff --git a/internal/db/models/node_log_dao.go b/internal/db/models/node_log_dao.go
index edd5e272..8b25e82f 100644
--- a/internal/db/models/node_log_dao.go
+++ b/internal/db/models/node_log_dao.go
@@ -80,6 +80,21 @@ func (this *NodeLogDAO) CreateLog(tx *dbs.Tx, nodeRole nodeconfigs.NodeRole, nod
 	return err
 }
 
+// DeleteExpiredLogsWithLevel 清除超出一定日期的某级别日志
+func (this *NodeLogDAO) DeleteExpiredLogsWithLevel(tx *dbs.Tx, level string, days int) error {
+	if days <= 0 {
+		return errors.New("invalid days '" + strconv.Itoa(days) + "'")
+	}
+	date := time.Now().AddDate(0, 0, -days)
+	expireDay := timeutil.Format("Ymd", date)
+	_, err := this.Query(tx).
+		Attr("level", level).
+		Where("day<=:day").
+		Param("day", expireDay).
+		Delete()
+	return err
+}
+
 // DeleteExpiredLogs 清除超出一定日期的日志
 func (this *NodeLogDAO) DeleteExpiredLogs(tx *dbs.Tx, days int) error {
 	if days <= 0 {
diff --git a/internal/tasks/node_log_cleaner_task.go b/internal/tasks/node_log_cleaner_task.go
index 4e83ac6f..f58185f7 100644
--- a/internal/tasks/node_log_cleaner_task.go
+++ b/internal/tasks/node_log_cleaner_task.go
@@ -13,7 +13,7 @@ func init() {
 	})
 }
 
-// 清理节点日志的工具
+// NodeLogCleanerTask 清理节点日志的任务
 type NodeLogCleanerTask struct {
 	duration time.Duration
 }
@@ -35,6 +35,12 @@ func (this *NodeLogCleanerTask) Start() {
 }
 
 func (this *NodeLogCleanerTask) loop() error {
-	// TODO 30天这个数值改成可以设置
-	return models.SharedNodeLogDAO.DeleteExpiredLogs(nil, 30)
+	// 删除7天以前的info日志
+	err := models.SharedNodeLogDAO.DeleteExpiredLogsWithLevel(nil, "info", 7)
+	if err != nil {
+		return err
+	}
+
+	// TODO 14天这个数值改成可以设置
+	return models.SharedNodeLogDAO.DeleteExpiredLogs(nil, 14)
 }