diff --git a/internal/tasks/node_monitor_task.go b/internal/tasks/node_monitor_task.go
index e35070d1..2a88ec16 100644
--- a/internal/tasks/node_monitor_task.go
+++ b/internal/tasks/node_monitor_task.go
@@ -8,6 +8,8 @@ import (
 	"github.com/TeaOSLab/EdgeCommon/pkg/systemconfigs"
 	"github.com/iwind/TeaGo/dbs"
 	"github.com/iwind/TeaGo/logs"
+	"github.com/iwind/TeaGo/types"
+	"strings"
 	"time"
 )
 
@@ -30,13 +32,15 @@ func init() {
 type NodeMonitorTask struct {
 	intervalSeconds int
 
-	inactiveMap map[int64]int // nodeId => count
+	inactiveMap map[string]int  // cluster@nodeId => count
+	notifiedMap map[int64]int64 // nodeId => timestamp
 }
 
 func NewNodeMonitorTask(intervalSeconds int) *NodeMonitorTask {
 	return &NodeMonitorTask{
 		intervalSeconds: intervalSeconds,
-		inactiveMap:     map[int64]int{},
+		inactiveMap:     map[string]int{},
+		notifiedMap:     map[int64]int64{},
 	}
 }
 
@@ -89,18 +93,25 @@ func (this *NodeMonitorTask) monitorCluster(cluster *models.NodeCluster) error {
 	for _, node := range inactiveNodes {
 		var nodeId = int64(node.Id)
 		nodeMap[nodeId] = node
-		this.inactiveMap[nodeId]++
+		this.inactiveMap[types.String(clusterId)+"@"+types.String(nodeId)]++
 	}
 
 	const maxInactiveTries = 5
 
 	// 处理现有的离线状态
-	for nodeId, count := range this.inactiveMap {
+	for key, count := range this.inactiveMap {
+		var pieces = strings.Split(key, "@")
+		if pieces[0] != types.String(clusterId) {
+			continue
+		}
+		var nodeId = types.Int64(pieces[1])
 		node, ok := nodeMap[nodeId]
 		if ok {
-			// 连续两次
-			if count >= maxInactiveTries {
-				this.inactiveMap[nodeId] = 0
+			// 连续 N 次离线发送通知
+			// 同时也要确保两次发送通知的时间不会过近
+			if count >= maxInactiveTries && time.Now().Unix()-this.notifiedMap[nodeId] > 3600 {
+				this.inactiveMap[key] = 0
+				this.notifiedMap[nodeId] = time.Now().Unix()
 
 				subject := "节点\"" + node.Name + "\"已处于离线状态"
 				msg := "集群'" + cluster.Name + "'节点\"" + node.Name + "\"已处于离线状态，请检查节点是否异常"
@@ -110,7 +121,7 @@ func (this *NodeMonitorTask) monitorCluster(cluster *models.NodeCluster) error {
 				}
 			}
 		} else {
-			this.inactiveMap[nodeId] = 0
+			delete(this.inactiveMap, key)
 		}
 	}