diff --git a/internal/web/actions/default/clusters/cluster/settings/health/checkDomain.go b/internal/web/actions/default/clusters/cluster/settings/health/checkDomain.go
new file mode 100644
index 00000000..1948c5a7
--- /dev/null
+++ b/internal/web/actions/default/clusters/cluster/settings/health/checkDomain.go
@@ -0,0 +1,52 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package health
+
+import (
+	"github.com/TeaOSLab/EdgeAdmin/internal/web/actions/actionutils"
+	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
+	"net"
+	"strings"
+)
+
+type CheckDomainAction struct {
+	actionutils.ParentAction
+}
+
+func (this *CheckDomainAction) RunPost(params struct {
+	Host      string
+	ClusterId int64
+}) {
+	this.Data["isOk"] = true // 默认为TRUE
+
+	var host = params.Host
+	if len(host) > 0 &&
+		!strings.Contains(host, "{") /** 包含变量 **/ {
+		h, _, err := net.SplitHostPort(host)
+		if err == nil && len(h) > 0 {
+			host = h
+		}
+
+		// 是否为IP
+		if net.ParseIP(host) != nil {
+			this.Success()
+			return
+		}
+
+		host = strings.ToLower(host)
+		resp, err := this.RPC().ServerRPC().CheckServerNameDuplicationInNodeCluster(this.AdminContext(), &pb.CheckServerNameDuplicationInNodeClusterRequest{
+			NodeClusterId:   params.ClusterId,
+			ServerNames:     []string{host},
+			SupportWildcard: true,
+		})
+		if err != nil {
+			this.ErrorPage(err)
+			return
+		}
+		if len(resp.DuplicatedServerNames) == 0 {
+			this.Data["isOk"] = false
+		}
+	}
+
+	this.Success()
+}
diff --git a/internal/web/actions/default/clusters/cluster/settings/init.go b/internal/web/actions/default/clusters/cluster/settings/init.go
index 5d7ee790..cf1ce903 100644
--- a/internal/web/actions/default/clusters/cluster/settings/init.go
+++ b/internal/web/actions/default/clusters/cluster/settings/init.go
@@ -29,6 +29,7 @@ func init() {
 			// 健康检查
 			GetPost("/health", new(health.IndexAction)).
 			GetPost("/health/runPopup", new(health.RunPopupAction)).
+			Post("/health/checkDomain", new(health.CheckDomainAction)).
 
 			// 缓存
 			GetPost("/cache", new(cache.IndexAction)).
diff --git a/web/public/js/components/common/health-check-config-box.js b/web/public/js/components/common/health-check-config-box.js
index 0d840707..081a75cb 100644
--- a/web/public/js/components/common/health-check-config-box.js
+++ b/web/public/js/components/common/health-check-config-box.js
@@ -1,5 +1,5 @@
 Vue.component("health-check-config-box", {
-	props: ["v-health-check-config"],
+	props: ["v-health-check-config", "v-check-domain-url"],
 	data: function () {
 		let healthCheckConfig = this.vHealthCheckConfig
 		let urlProtocol = "http"
@@ -76,7 +76,9 @@ Vue.component("health-check-config-box", {
 			urlHost: urlHost,
 			urlPort: urlPort,
 			urlRequestURI: urlRequestURI,
-			urlIsEditing: healthCheckConfig.url.length == 0
+			urlIsEditing: healthCheckConfig.url.length == 0,
+
+			hostErr: ""
 		}
 	},
 	watch: {
@@ -100,6 +102,7 @@ Vue.component("health-check-config-box", {
 		},
 		urlHost: function () {
 			this.changeURL()
+			this.hostErr = ""
 		},
 		"healthCheck.countTries": function (v) {
 			let count = parseInt(v)
@@ -147,6 +150,24 @@ Vue.component("health-check-config-box", {
 				}
 			})
 		},
+		onChangeURLHost: function () {
+			let checkDomainURL = this.vCheckDomainUrl
+			if (checkDomainURL == null || checkDomainURL.length == 0) {
+				return
+			}
+
+			let that = this
+			Tea.action(checkDomainURL)
+				.params({host: this.urlHost})
+				.success(function (resp) {
+					if (!resp.data.isOk) {
+						that.hostErr = "在当前集群中找不到此域名，可能会影响健康检查结果。"
+					} else {
+						that.hostErr = ""
+					}
+				})
+				.post()
+		},
 		editURL: function () {
 			this.urlIsEditing = !this.urlIsEditing
 		}
@@ -185,8 +206,8 @@ Vue.component("health-check-config-box", {
 						<tr>
 							<td>域名</td>
 							<td>
-								<input type="text" v-model="urlHost"/>
-								<p class="comment">已经部署到当前集群的一个域名；如果为空则使用节点IP作为域名。<span class="red" v-if="urlProtocol == 'https' && urlHost.length == 0">如果协议是https，这里必须填写一个已经设置了SSL证书的域名。</span></p>
+								<input type="text" v-model="urlHost" @change="onChangeURLHost"/>
+								<p class="comment"><span v-if="hostErr.length > 0" class="red">{{hostErr}}</span>已经部署到当前集群的一个域名；如果为空则使用节点IP作为域名。<span class="red" v-if="urlProtocol == 'https' && urlHost.length == 0">如果协议是https，这里必须填写一个已经设置了SSL证书的域名。</span></p>
 							</td>
 						</tr>
 						<tr>
diff --git a/web/views/@default/clusters/cluster/settings/health/index.html b/web/views/@default/clusters/cluster/settings/health/index.html
index feee29ad..a64c3508 100644
--- a/web/views/@default/clusters/cluster/settings/health/index.html
+++ b/web/views/@default/clusters/cluster/settings/health/index.html
@@ -5,7 +5,7 @@
 <div class="right-box with-menu">
 	<form method="post" class="ui form" data-tea-action="$" data-tea-success="success">
 		<input type="hidden" name="clusterId" :value="clusterId"/>
-		<health-check-config-box :v-health-check-config="healthCheckConfig"></health-check-config-box>
+		<health-check-config-box :v-health-check-config="healthCheckConfig" :v-check-domain-url="'/clusters/cluster/settings/health/checkDomain?clusterId=' + clusterId"></health-check-config-box>
 		<submit-btn></submit-btn> &nbsp; <a href="" @click.prevent="run()" v-if="healthCheckConfig != null && healthCheckConfig.isOn">立即检查</a>
 	</form>
 </div>
\ No newline at end of file