diff --git a/plugin/lib/quickcomposer/browser/device.js b/plugin/lib/quickcomposer/browser/device.js
new file mode 100644
index 0000000..fa8a650
--- /dev/null
+++ b/plugin/lib/quickcomposer/browser/device.js
@@ -0,0 +1,301 @@
+const { initCDP, cleanupCDP } = require("./cdp");
+const { searchTarget } = require("./tabs");
+
+// 预定义的设备列表
+const devices = {
+  // iOS 设备
+  "iPhone X": {
+    userAgent:
+      "Mozilla/5.0 (iPhone; CPU iPhone OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1",
+    viewport: {
+      width: 375,
+      height: 812,
+      deviceScaleFactor: 3,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "iPhone 12 Pro": {
+    userAgent:
+      "Mozilla/5.0 (iPhone; CPU iPhone OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1",
+    viewport: {
+      width: 390,
+      height: 844,
+      deviceScaleFactor: 3,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "iPhone 14 Pro Max": {
+    userAgent:
+      "Mozilla/5.0 (iPhone; CPU iPhone OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1",
+    viewport: {
+      width: 430,
+      height: 932,
+      deviceScaleFactor: 3,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "iPad Pro": {
+    userAgent:
+      "Mozilla/5.0 (iPad; CPU OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1",
+    viewport: {
+      width: 1024,
+      height: 1366,
+      deviceScaleFactor: 2,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "iPad Mini": {
+    userAgent:
+      "Mozilla/5.0 (iPad; CPU OS 17_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2 Mobile/15E148 Safari/604.1",
+    viewport: {
+      width: 768,
+      height: 1024,
+      deviceScaleFactor: 2,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+
+  // Android 设备
+  "Pixel 5": {
+    userAgent:
+      "Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Mobile Safari/537.36",
+    viewport: {
+      width: 393,
+      height: 851,
+      deviceScaleFactor: 2.75,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "Pixel 7": {
+    userAgent:
+      "Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Mobile Safari/537.36",
+    viewport: {
+      width: 412,
+      height: 915,
+      deviceScaleFactor: 2.625,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "Samsung Galaxy S20 Ultra": {
+    userAgent:
+      "Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Mobile Safari/537.36",
+    viewport: {
+      width: 412,
+      height: 915,
+      deviceScaleFactor: 3.5,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "Samsung Galaxy Tab S7": {
+    userAgent:
+      "Mozilla/5.0 (Linux; Android 14; SM-X710) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36",
+    viewport: {
+      width: 1600,
+      height: 2560,
+      deviceScaleFactor: 2,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "Xiaomi 12 Pro": {
+    userAgent:
+      "Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Mobile Safari/537.36",
+    viewport: {
+      width: 390,
+      height: 844,
+      deviceScaleFactor: 3,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+  "HUAWEI Mate30 Pro": {
+    userAgent:
+      "Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Mobile Safari/537.36",
+    viewport: {
+      width: 392,
+      height: 835,
+      deviceScaleFactor: 3,
+      mobile: true,
+      hasTouch: true,
+      isLandscape: false,
+    },
+  },
+
+  // 桌面设备
+  Desktop: {
+    userAgent:
+      "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36",
+    viewport: {
+      width: 1920,
+      height: 1080,
+      deviceScaleFactor: 1,
+      mobile: false,
+      hasTouch: false,
+      isLandscape: false,
+    },
+  },
+  "MacBook Pro 16": {
+    userAgent:
+      "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36",
+    viewport: {
+      width: 1728,
+      height: 1117,
+      deviceScaleFactor: 2,
+      mobile: false,
+      hasTouch: false,
+      isLandscape: false,
+    },
+  },
+  "4K Display": {
+    userAgent:
+      "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36",
+    viewport: {
+      width: 3840,
+      height: 2160,
+      deviceScaleFactor: 2,
+      mobile: false,
+      hasTouch: false,
+      isLandscape: false,
+    },
+  },
+};
+
+// 设置设备模拟
+const setDevice = async (tab, deviceName) => {
+  const target = await searchTarget(tab);
+  const { Network, Emulation } = await initCDP(target.id);
+
+  try {
+    const device = devices[deviceName];
+    if (!device) {
+      throw new Error(`未找到设备配置: ${deviceName}`);
+    }
+
+    // 设置 User Agent
+    await Network.setUserAgentOverride({
+      userAgent: device.userAgent,
+    });
+
+    // 设置视口
+    await Emulation.setDeviceMetricsOverride({
+      ...device.viewport,
+      screenWidth: device.viewport.width,
+      screenHeight: device.viewport.height,
+    });
+
+    // 设置触摸事件模拟
+    if (device.viewport.hasTouch) {
+      await Emulation.setTouchEmulationEnabled({
+        enabled: true,
+        maxTouchPoints: 5,
+      });
+    }
+  } finally {
+    await cleanupCDP(target.id);
+  }
+};
+
+// 自定义设备模拟
+const setCustomDevice = async (tab, options) => {
+  const target = await searchTarget(tab);
+  const { Network, Emulation } = await initCDP(target.id);
+
+  try {
+    const {
+      userAgent,
+      width = 1920,
+      height = 1080,
+      deviceScaleFactor = 1,
+      mobile = false,
+      hasTouch = false,
+      isLandscape = false,
+    } = options;
+
+    // 设置 User Agent
+    if (userAgent) {
+      await Network.setUserAgentOverride({
+        userAgent,
+      });
+    }
+
+    // 设置视口
+    await Emulation.setDeviceMetricsOverride({
+      width,
+      height,
+      deviceScaleFactor,
+      mobile,
+      isLandscape,
+      screenWidth: width,
+      screenHeight: height,
+    });
+
+    // 设置触摸事件模拟
+    if (hasTouch) {
+      await Emulation.setTouchEmulationEnabled({
+        enabled: true,
+        maxTouchPoints: 5,
+      });
+    }
+  } finally {
+    await cleanupCDP(target.id);
+  }
+};
+
+// 清除设备模拟
+const clearDeviceEmulation = async (tab) => {
+  const target = await searchTarget(tab);
+  const { Network, Emulation } = await initCDP(target.id);
+
+  try {
+    // 先禁用触摸事件模拟
+    await Emulation.setTouchEmulationEnabled({
+      enabled: false,
+    });
+
+    // 清除 User Agent 覆盖
+    await Network.setUserAgentOverride({
+      userAgent: "",
+    });
+
+    // 重置设备指标
+    await Emulation.setDeviceMetricsOverride({
+      width: 0,
+      height: 0,
+      deviceScaleFactor: 0,
+      mobile: false,
+      screenWidth: 0,
+      screenHeight: 0,
+    });
+
+    // 清除设备指标覆盖
+    await Emulation.clearDeviceMetricsOverride();
+  } catch (error) {
+    console.error("清除设备模拟失败:", error);
+  } finally {
+    await cleanupCDP(target.id);
+  }
+};
+
+module.exports = {
+  setDevice,
+  setCustomDevice,
+  clearDeviceEmulation,
+};
diff --git a/plugin/lib/quickcomposer/browser/index.js b/plugin/lib/quickcomposer/browser/index.js
index a2c74f0..2cf721d 100644
--- a/plugin/lib/quickcomposer/browser/index.js
+++ b/plugin/lib/quickcomposer/browser/index.js
@@ -5,6 +5,7 @@ const tabs = require("./tabs");
 const url = require("./url");
 const cookie = require("./cookie");
 const screenshot = require("./screenshot");
+const device = require("./device");
 
 module.exports = {
   ...url,
@@ -14,4 +15,5 @@ module.exports = {
   ...browserManager,
   ...cookie,
   ...screenshot,
+  ...device,
 };
diff --git a/src/js/composer/commands/browserCommands.js b/src/js/composer/commands/browserCommands.js
index b0d8bdf..6c049c8 100644
--- a/src/js/composer/commands/browserCommands.js
+++ b/src/js/composer/commands/browserCommands.js
@@ -1,4 +1,5 @@
 import { newVarInputVal } from "js/composer/varInputValManager";
+import { deviceName, userAgent } from "js/options/httpOptions";
 
 const tabConfig = {
   component: "OptionEditor",
@@ -6,7 +7,6 @@ const tabConfig = {
   options: {
     by: {
       component: "QSelect",
-      label: "标签",
       width: 3,
       options: [
         { label: "当前标签页", value: "active" },
@@ -19,7 +19,7 @@ const tabConfig = {
       component: "VariableInput",
       icon: "tab",
       width: 9,
-      placeholder: "当前标签页留空，其他支持模糊匹配",
+      placeholder: "选择当前标签页留空，URL/标题/ID支持模糊匹配",
     },
   },
   defaultValue: {
@@ -625,5 +625,101 @@ export const browserCommands = {
         },
       ],
     },
+    {
+      value: "quickcomposer.browser.setDevice",
+      label: "设备模拟",
+      icon: "devices",
+      isAsync: true,
+      config: [tabConfig],
+      subCommands: [
+        {
+          value: "quickcomposer.browser.setDevice",
+          label: "使用预设设备",
+          icon: "smartphone",
+          config: [
+            {
+              label: "设备",
+              component: "QSelect",
+              icon: "devices",
+              width: 12,
+              options: [
+                ...deviceName,
+                // 桌面设备
+                { label: "Desktop", value: "Desktop" },
+                { label: "MacBook Pro 16", value: "MacBook Pro 16" },
+                { label: "4K Display", value: "4K Display" },
+              ],
+            },
+          ],
+        },
+        {
+          value: "quickcomposer.browser.setCustomDevice",
+          label: "自定义设备",
+          icon: "build",
+          config: [
+            {
+              label: "设备配置",
+              component: "OptionEditor",
+              icon: "settings",
+              width: 12,
+              options: {
+                width: {
+                  label: "宽度",
+                  component: "NumberInput",
+                  width: 3,
+                  defaultValue: 1920,
+                  min: 0,
+                },
+                height: {
+                  label: "高度",
+                  component: "NumberInput",
+                  width: 3,
+                  defaultValue: 1080,
+                  min: 0,
+                },
+                deviceScaleFactor: {
+                  label: "设备像素比",
+                  component: "NumberInput",
+                  width: 3,
+                  defaultValue: 1,
+                  min: 1,
+                  step: 0.1,
+                },
+                mobile: {
+                  label: "移动设备",
+                  component: "CheckButton",
+                  width: 3,
+                },
+                hasTouch: {
+                  label: "触摸屏",
+                  component: "CheckButton",
+                  width: 3,
+                },
+                isLandscape: {
+                  label: "横屏",
+                  component: "CheckButton",
+                  width: 3,
+                },
+                userAgent: {
+                  label: "User Agent",
+                  component: "VariableInput",
+                  icon: "code",
+                  width: 6,
+                  placeholder: "留空使用默认",
+                  options: {
+                    items: userAgent,
+                  },
+                },
+              },
+            },
+          ],
+        },
+        {
+          value: "quickcomposer.browser.clearDeviceEmulation",
+          label: "清除设备模拟",
+          icon: "clear",
+        },
+      ],
+    },
   ],
 };
diff --git a/src/js/options/httpOptions.js b/src/js/options/httpOptions.js
index 6705be6..d9cf1a7 100644
--- a/src/js/options/httpOptions.js
+++ b/src/js/options/httpOptions.js
@@ -67,15 +67,22 @@ export const commonHeaders = [
 ];
 
 export const deviceName = [
-  { label: "iPhone 11", value: "iPhone 11" },
   { label: "iPhone X", value: "iPhone X" },
-  { label: "iPad", value: "iPad" },
-  { label: "iPhone 6/7/8 Plus", value: "iPhone 6/7/8 Plus" },
-  { label: "iPhone 6/7/8", value: "iPhone 6/7/8" },
-  { label: "iPhone 5/SE", value: "iPhone 5/SE" },
-  { label: "HUAWEI Mate10", value: "HUAWEI Mate10" },
-  { label: "HUAWEI Mate20", value: "HUAWEI Mate20" },
-  { label: "HUAWEI Mate30", value: "HUAWEI Mate30" },
+  { label: "iPhone 12 Pro", value: "iPhone 12 Pro" },
+  { label: "iPhone 14 Pro Max", value: "iPhone 14 Pro Max" },
+  { label: "iPad Pro", value: "iPad Pro" },
+  { label: "iPad Mini", value: "iPad Mini" },
+  { label: "Pixel 5", value: "Pixel 5" },
+  { label: "Pixel 7", value: "Pixel 7" },
+  {
+    label: "Samsung Galaxy S20 Ultra",
+    value: "Samsung Galaxy S20 Ultra",
+  },
+  {
+    label: "Samsung Galaxy Tab S7",
+    value: "Samsung Galaxy Tab S7",
+  },
+  { label: "Xiaomi 12 Pro", value: "Xiaomi 12 Pro" },
   { label: "HUAWEI Mate30 Pro", value: "HUAWEI Mate30 Pro" },
 ];