diff --git a/server/model/monitor.js b/server/model/monitor.js
index 27f68d7a..e4d112bd 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -739,8 +739,6 @@ class Monitor extends BeanModel {
                 } else if (this.type === "docker") {
                     log.debug("monitor", `[${this.name}] Prepare Options for Axios`);
 
-                    const dockerHost = await R.load("docker_host", this.docker_host);
-
                     const options = {
                         url: `/containers/${this.docker_container}/json`,
                         timeout: this.interval * 1000 * 0.8,
@@ -757,6 +755,12 @@ class Monitor extends BeanModel {
                         }),
                     };
 
+                    const dockerHost = await R.load("docker_host", this.docker_host);
+
+                    if (!dockerHost) {
+                        throw new Error("Failed to load docker host config");
+                    }
+
                     if (dockerHost._dockerType === "socket") {
                         options.socketPath = dockerHost._dockerDaemon;
                     } else if (dockerHost._dockerType === "tcp") {
diff --git a/src/components/ActionSelect.vue b/src/components/ActionSelect.vue
index ae09e656..78daebc2 100644
--- a/src/components/ActionSelect.vue
+++ b/src/components/ActionSelect.vue
@@ -1,9 +1,9 @@
 <template>
     <div class="input-group mb-3">
-        <select ref="select" v-model="model" class="form-select" :disabled="disabled">
-            <option v-for="option in options" :key="option" :value="option.value">{{ option.label }}</option>
+        <select ref="select" v-model="model" class="form-select" :disabled="disabled" :required="required">
+            <option v-for="option in options" :key="option" :value="option.value" :disabled="option.disabled">{{ option.label }}</option>
         </select>
-        <a class="btn btn-outline-primary" @click="action()">
+        <a class="btn btn-outline-primary" :class="{ disabled: actionDisabled }" @click="action()">
             <font-awesome-icon :icon="icon" />
         </a>
     </div>
@@ -50,6 +50,22 @@ export default {
         action: {
             type: Function,
             default: () => {},
+        },
+        /**
+         * Whether the action button is disabled.
+         * @example true
+         */
+        actionDisabled: {
+            type: Boolean,
+            default: false
+        },
+        /**
+         * Whether the select field is required.
+         * @example true
+         */
+        required: {
+            type: Boolean,
+            default: false,
         }
     },
     emits: [ "update:modelValue" ],
diff --git a/src/components/DockerHostDialog.vue b/src/components/DockerHostDialog.vue
index 335e8f2b..43f1fa7c 100644
--- a/src/components/DockerHostDialog.vue
+++ b/src/components/DockerHostDialog.vue
@@ -70,7 +70,7 @@ export default {
         Confirm,
     },
     props: {},
-    emits: [ "added" ],
+    emits: [ "added", "deleted" ],
     data() {
         return {
             modal: null,
@@ -167,6 +167,7 @@ export default {
                 this.processing = false;
 
                 if (res.ok) {
+                    this.$emit("deleted", this.id);
                     this.modal.hide();
                 }
             });
diff --git a/src/lang/en.json b/src/lang/en.json
index 155b9c14..9f2feba7 100644
--- a/src/lang/en.json
+++ b/src/lang/en.json
@@ -369,6 +369,8 @@
     "Setup Docker Host": "Setup Docker Host",
     "Connection Type": "Connection Type",
     "Docker Daemon": "Docker Daemon",
+    "noDockerHostMsg": "Not Available. Setup a Docker Host First.",
+    "DockerHostRequired": "Please set the Docker Host for this monitor.",
     "deleteDockerHostMsg": "Are you sure want to delete this docker host for all monitors?",
     "socket": "Socket",
     "tcp": "TCP / HTTP",
diff --git a/src/pages/EditMonitor.vue b/src/pages/EditMonitor.vue
index 687aa42c..f83eec01 100644
--- a/src/pages/EditMonitor.vue
+++ b/src/pages/EditMonitor.vue
@@ -285,22 +285,17 @@
                             <!-- Docker Host -->
                             <!-- For Docker Type -->
                             <div v-if="monitor.type === 'docker'" class="my-3">
-                                <h2 class="mb-2">{{ $t("Docker Host") }}</h2>
-                                <p v-if="$root.dockerHostList.length === 0">
-                                    {{ $t("Not available, please setup.") }}
-                                </p>
-
-                                <div v-else class="mb-3">
+                                <div class="mb-3">
                                     <label for="docker-host" class="form-label">{{ $t("Docker Host") }}</label>
-                                    <select id="docket-host" v-model="monitor.docker_host" class="form-select">
-                                        <option v-for="host in $root.dockerHostList" :key="host.id" :value="host.id">{{ host.name }}</option>
-                                    </select>
-                                    <a href="#" @click="$refs.dockerHostDialog.show(monitor.docker_host)">{{ $t("Edit") }}</a>
+                                    <ActionSelect
+                                        v-model="monitor.docker_host"
+                                        :options="dockerHostOptionsList"
+                                        :disabled="$root.dockerHostList == null || $root.dockerHostList.length === 0"
+                                        :icon="'plus'"
+                                        :action="() => $refs.dockerHostDialog.show()"
+                                        :required="true"
+                                    />
                                 </div>
-
-                                <button class="btn btn-primary me-2" type="button" @click="$refs.dockerHostDialog.show()">
-                                    {{ $t("Setup Docker Host") }}
-                                </button>
                             </div>
 
                             <!-- MQTT -->
@@ -1119,6 +1114,21 @@ message HealthCheckResponse {
             return list;
         },
 
+        dockerHostOptionsList() {
+            if (this.$root.dockerHostList && this.$root.dockerHostList.length > 0) {
+                return this.$root.dockerHostList.map((host) => {
+                    return {
+                        label: host.name,
+                        value: host.id
+                    };
+                });
+            } else {
+                return [{
+                    label: this.$t("noDockerHostMsg"),
+                    value: null,
+                }];
+            }
+        }
     },
     watch: {
         "$root.proxyList"() {
@@ -1351,6 +1361,12 @@ message HealthCheckResponse {
                     return false;
                 }
             }
+            if (this.monitor.type === "docker") {
+                if (this.monitor.docker_host == null) {
+                    toast.error(this.$t("DockerHostRequired"));
+                    return false;
+                }
+            }
             return true;
         },