diff --git a/apps/web-antd/src/api/aiot/device/index.ts b/apps/web-antd/src/api/aiot/device/index.ts
index dcfd94b39..bdb947304 100644
--- a/apps/web-antd/src/api/aiot/device/index.ts
+++ b/apps/web-antd/src/api/aiot/device/index.ts
@@ -232,9 +232,10 @@ export async function getSnapUrl(cameraCode: string, force = false): Promise<str
 // ==================== 算法管理 ====================
 
 /** 算法列表 */
-export function getAlgorithmList() {
+export function getAlgorithmList(deviceId?: string) {
   return wvpRequestClient.get<AiotDeviceApi.Algorithm[]>(
     '/aiot/device/algorithm/list',
+    { params: deviceId ? { deviceId } : {} },
   );
 }
 
@@ -246,6 +247,14 @@ export function saveAlgoGlobalParams(algoCode: string, globalParams: string) {
   );
 }
 
+/** 批量更新设备算法参数 */
+export function updateDeviceAlgoParams(deviceId: string, algoCode: string, params: string) {
+  return wvpRequestClient.post(
+    `/aiot/device/algorithm/device-binds/${deviceId}/${algoCode}`,
+    { params },
+  );
+}
+
 // ==================== 算法绑定 ====================
 
 /** 绑定算法到 ROI */
diff --git a/apps/web-antd/src/views/aiot/device/algorithm/index.vue b/apps/web-antd/src/views/aiot/device/algorithm/index.vue
index 13a7c01ac..ef4754811 100644
--- a/apps/web-antd/src/views/aiot/device/algorithm/index.vue
+++ b/apps/web-antd/src/views/aiot/device/algorithm/index.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import type { AiotDeviceApi } from '#/api/aiot/device';
+import type { AiotEdgeApi } from '#/api/aiot/edge';
 
 import { computed, onMounted, ref } from 'vue';
 
@@ -9,11 +10,18 @@ import {
   Form,
   InputNumber,
   message,
+  Select,
+  SelectOption,
   Spin,
   Tabs,
 } from 'ant-design-vue';
 
-import { getAlgorithmList, saveAlgoGlobalParams } from '#/api/aiot/device';
+import {
+  getAlgorithmList,
+  saveAlgoGlobalParams,
+  updateDeviceAlgoParams,
+} from '#/api/aiot/device';
+import { getDeviceList } from '#/api/aiot/edge';
 
 // 参数名中英文映射（与 AlgorithmParamEditor 保持一致）
 const paramNameMap: Record<string, string> = {
@@ -52,6 +60,22 @@ const paramDescMap: Record<string, string> = {
   confirm_congestion_sec: '车辆数持续超过阈值达到该时间后触发拥堵告警',
 };
 
+// ==================== 设备选择器 ====================
+const selectedDeviceId = ref<string>('');
+const deviceList = ref<AiotEdgeApi.Device[]>([]);
+
+const isDeviceMode = computed(() => selectedDeviceId.value !== '');
+
+const saveButtonText = computed(() => {
+  if (!isDeviceMode.value) return '保存全局默认';
+  const device = deviceList.value.find(
+    (d) => d.deviceId === selectedDeviceId.value,
+  );
+  const name = device?.deviceName || device?.deviceId || selectedDeviceId.value;
+  return `保存到 ${name}`;
+});
+
+// ==================== 算法数据 ====================
 const algorithms = ref<AiotDeviceApi.Algorithm[]>([]);
 const activeTab = ref<string>('');
 const loading = ref(false);
@@ -89,20 +113,40 @@ function getParamDesc(key: string): string | undefined {
 }
 
 onMounted(async () => {
-  await loadAlgorithms();
+  await Promise.all([loadDevices(), loadAlgorithms()]);
 });
 
+async function loadDevices() {
+  try {
+    const list = await getDeviceList();
+    deviceList.value = Array.isArray(list) ? list : [];
+  } catch {
+    deviceList.value = [];
+  }
+}
+
+async function onDeviceChange() {
+  await loadAlgorithms();
+}
+
 async function loadAlgorithms() {
   loading.value = true;
   try {
-    const data = await getAlgorithmList();
+    const deviceId = selectedDeviceId.value || undefined;
+    const data = await getAlgorithmList(deviceId);
     algorithms.value = Array.isArray(data) ? data : [];
     if (algorithms.value.length > 0) {
-      activeTab.value = algorithms.value[0]!.algoCode || '';
+      // 保持当前 tab，如果不存在则切到第一个
+      const codes = algorithms.value.map((a) => a.algoCode);
+      if (!codes.includes(activeTab.value)) {
+        activeTab.value = algorithms.value[0]!.algoCode || '';
+      }
       // 初始化所有算法的表单数据
       for (const algo of algorithms.value) {
         initFormData(algo);
       }
+    } else {
+      activeTab.value = '';
     }
   } catch {
     message.error('加载算法列表失败');
@@ -174,8 +218,19 @@ async function handleSave() {
       }
     }
 
-    await saveAlgoGlobalParams(algo.algoCode, JSON.stringify(toSave));
-    message.success('全局参数保存成功');
+    if (isDeviceMode.value) {
+      // 设备模式：保存到设备绑定
+      await updateDeviceAlgoParams(
+        selectedDeviceId.value,
+        algo.algoCode,
+        JSON.stringify(toSave),
+      );
+      message.success('设备参数保存成功');
+    } else {
+      // 全局模式：保存全局参数
+      await saveAlgoGlobalParams(algo.algoCode, JSON.stringify(toSave));
+      message.success('全局参数保存成功');
+    }
     // 更新本地算法数据
     algo.globalParams = JSON.stringify(toSave);
     dirtyFieldsMap.value[algo.algoCode] = new Set();
@@ -209,11 +264,25 @@ function isSkippedField(key: string, schema: any): boolean {
 
 <template>
   <div class="algo-global-config">
-    <Card title="算法全局参数配置">
+    <Card title="算法参数配置">
       <template #extra>
-        <span class="card-tip">
-          配置各算法的全局默认参数，ROI 绑定时将以此为默认值
-        </span>
+        <div class="card-extra">
+          <Select
+            v-model:value="selectedDeviceId"
+            style="width: 240px"
+            placeholder="选择设备"
+            @change="onDeviceChange"
+          >
+            <SelectOption value="">全局默认</SelectOption>
+            <SelectOption
+              v-for="d in deviceList"
+              :key="d.deviceId"
+              :value="d.deviceId"
+            >
+              {{ d.deviceName || d.deviceId }}
+            </SelectOption>
+          </Select>
+        </div>
       </template>
 
       <Spin :spinning="loading">
@@ -314,7 +383,7 @@ function isSkippedField(key: string, schema: any): boolean {
                 :loading="saving"
                 @click="handleSave"
               >
-                保存全局参数
+                {{ saveButtonText }}
               </Button>
             </div>
           </Tabs.TabPane>
@@ -324,7 +393,12 @@ function isSkippedField(key: string, schema: any): boolean {
       <!-- 帮助说明 -->
       <div class="help-tip">
         <span class="help-text">
-          全局参数为各算法的默认配置，当 ROI 绑定算法时未单独设置参数，将使用此处的全局默认值。修改后需重新推送配置到边缘端才能生效。
+          <template v-if="isDeviceMode">
+            当前查看的是该设备各 ROI 绑定的实际参数。修改后将更新该设备所有 ROI 绑定中对应算法的参数，需重新推送配置到边缘端才能生效。
+          </template>
+          <template v-else>
+            全局参数为各算法的默认配置，当 ROI 绑定算法时未单独设置参数，将使用此处的全局默认值。修改后需重新推送配置到边缘端才能生效。
+          </template>
         </span>
       </div>
     </Card>
@@ -336,9 +410,10 @@ function isSkippedField(key: string, schema: any): boolean {
   padding: 16px;
 }
 
-.card-tip {
-  font-size: 13px;
-  color: #8c8c8c;
+.card-extra {
+  display: flex;
+  align-items: center;
+  gap: 12px;
 }
 
 .empty-state {