diff --git a/apps/desktop-shell/scripts/check-config.mjs b/apps/desktop-shell/scripts/check-config.mjs
index 31a8e7c8f..788d3c4e4 100644
--- a/apps/desktop-shell/scripts/check-config.mjs
+++ b/apps/desktop-shell/scripts/check-config.mjs
@@ -13,7 +13,7 @@ const buildScriptPath = new URL('../src-tauri/build.rs', import.meta.url);
 const buildScript = fs.readFileSync(buildScriptPath, 'utf8');
 const cargoManifestPath = new URL('../src-tauri/Cargo.toml', import.meta.url);
 const cargoManifest = fs.readFileSync(cargoManifestPath, 'utf8');
-const iconPath = new URL('../src-tauri/icons/icon.png', import.meta.url);
+const iconDirPath = new URL('../src-tauri/icons/', import.meta.url);
 const sharedContractPath = new URL(
   '../../../packages/shared/src/contracts/hostBridge.ts',
   import.meta.url,
@@ -41,6 +41,20 @@ const devScaffoldTerms = [
   '模' + '拟',
   '伪' + '造',
 ];
+const requiredBundleIcons = [
+  'icons/32x32.png',
+  'icons/128x128.png',
+  'icons/128x128@2x.png',
+  'icons/icon.icns',
+  'icons/icon.ico',
+  'icons/icon.png',
+];
+const requiredPngIconSizes = new Map([
+  ['32x32.png', 32],
+  ['128x128.png', 128],
+  ['128x128@2x.png', 256],
+  ['icon.png', 512],
+]);
 
 function extractCargoPackageString(source, key) {
   const match = source.match(new RegExp(`^${key}\\s*=\\s*"([^"]+)"`, 'm'));
@@ -103,6 +117,68 @@ assertNoDevScaffoldTerms(
   productionSourceRoots.flatMap((root) => collectProductionSourceFiles(root)),
 );
 
+function readPngSize(file) {
+  const buffer = fs.readFileSync(file);
+  if (
+    buffer.length < 24 ||
+    buffer.toString('hex', 0, 8) !== '89504e470d0a1a0a'
+  ) {
+    throw new Error(`desktop shell icon is not a PNG: ${file.pathname}`);
+  }
+
+  const width = buffer.readUInt32BE(16);
+  const height = buffer.readUInt32BE(20);
+  const dataStart = buffer.indexOf(Buffer.from('IDAT'));
+  const hasTransparencyChunk = buffer.includes(Buffer.from('tRNS'));
+  const hasAlphaColorType = buffer[25] === 4 || buffer[25] === 6;
+
+  return {
+    width,
+    height,
+    dataStart,
+    hasTransparency: hasTransparencyChunk || hasAlphaColorType,
+  };
+}
+
+function assertDesktopIconSet() {
+  const icons = config.bundle?.icon ?? [];
+  if (
+    icons.length !== requiredBundleIcons.length ||
+    requiredBundleIcons.some((icon) => !icons.includes(icon))
+  ) {
+    throw new Error('desktop shell must bundle the full real desktop icon set');
+  }
+
+  for (const [fileName, expectedSize] of requiredPngIconSizes) {
+    const icon = readPngSize(new URL(fileName, iconDirPath));
+    if (icon.width !== expectedSize || icon.height !== expectedSize) {
+      throw new Error(`desktop shell icon ${fileName} must be ${expectedSize}x${expectedSize}`);
+    }
+    if (!icon.hasTransparency || icon.dataStart === -1) {
+      throw new Error(`desktop shell icon ${fileName} must use a real transparent brand asset`);
+    }
+  }
+
+  const ico = fs.readFileSync(new URL('icon.ico', iconDirPath));
+  if (
+    ico.length < 6 ||
+    ico.readUInt16LE(0) !== 0 ||
+    ico.readUInt16LE(2) !== 1 ||
+    ico.readUInt16LE(4) < 3
+  ) {
+    throw new Error('desktop shell Windows icon must be a multi-size ICO');
+  }
+
+  const icns = fs.readFileSync(new URL('icon.icns', iconDirPath));
+  if (
+    icns.length < 16 ||
+    icns.toString('ascii', 0, 4) !== 'icns' ||
+    icns.readUInt32BE(4) !== icns.length
+  ) {
+    throw new Error('desktop shell macOS icon must be a valid ICNS');
+  }
+}
+
 function extractStringArrayExport(source, exportName) {
   const match = source.match(
     new RegExp(`export const ${exportName}[^=]*= \\[([\\s\\S]*?)\\](?: as const)?;`),
@@ -215,9 +291,7 @@ if (!String(config.build?.devUrl ?? '').startsWith('http://127.0.0.1:3000/?')) {
   throw new Error('desktop shell dev URL must load the local Vite H5 entry');
 }
 
-if (!config.bundle?.icon?.includes('icons/icon.png')) {
-  throw new Error('desktop shell must use the real brand icon asset');
-}
+assertDesktopIconSet();
 
 if (config.bundle?.active !== true || config.bundle?.targets !== 'all') {
   throw new Error('desktop shell bundle targets must remain enabled for all platforms');
@@ -382,11 +456,6 @@ if (main.includes('single-instance",') || main.includes('"single-instance"')) {
   throw new Error('desktop shell must not emit secondary-instance argv to H5');
 }
 
-const icon = fs.readFileSync(iconPath);
-if (icon.length < 10000) {
-  throw new Error('desktop shell icon must use a real brand asset');
-}
-
 for (const snippet of requiredMainSnippets) {
   if (!main.includes(snippet)) {
     throw new Error(`desktop shell Rust host bridge missing ${snippet}`);
diff --git a/apps/desktop-shell/src-tauri/icons/128x128.png b/apps/desktop-shell/src-tauri/icons/128x128.png
new file mode 100644
index 000000000..1d09353bb
Binary files /dev/null and b/apps/desktop-shell/src-tauri/icons/128x128.png differ
diff --git a/apps/desktop-shell/src-tauri/icons/128x128@2x.png b/apps/desktop-shell/src-tauri/icons/128x128@2x.png
new file mode 100644
index 000000000..a301280b5
Binary files /dev/null and b/apps/desktop-shell/src-tauri/icons/128x128@2x.png differ
diff --git a/apps/desktop-shell/src-tauri/icons/32x32.png b/apps/desktop-shell/src-tauri/icons/32x32.png
new file mode 100644
index 000000000..ed8cd0c4b
Binary files /dev/null and b/apps/desktop-shell/src-tauri/icons/32x32.png differ
diff --git a/apps/desktop-shell/src-tauri/icons/icon.icns b/apps/desktop-shell/src-tauri/icons/icon.icns
new file mode 100644
index 000000000..e73546ded
Binary files /dev/null and b/apps/desktop-shell/src-tauri/icons/icon.icns differ
diff --git a/apps/desktop-shell/src-tauri/icons/icon.ico b/apps/desktop-shell/src-tauri/icons/icon.ico
new file mode 100644
index 000000000..735dbd072
Binary files /dev/null and b/apps/desktop-shell/src-tauri/icons/icon.ico differ
diff --git a/apps/desktop-shell/src-tauri/tauri.conf.json b/apps/desktop-shell/src-tauri/tauri.conf.json
index 25ce2983d..32d46765d 100644
--- a/apps/desktop-shell/src-tauri/tauri.conf.json
+++ b/apps/desktop-shell/src-tauri/tauri.conf.json
@@ -29,6 +29,13 @@
   "bundle": {
     "active": true,
     "targets": "all",
-    "icon": ["icons/icon.png"]
+    "icon": [
+      "icons/32x32.png",
+      "icons/128x128.png",
+      "icons/128x128@2x.png",
+      "icons/icon.icns",
+      "icons/icon.ico",
+      "icons/icon.png"
+    ]
   }
 }
diff --git a/docs/project-memory/shared-memory/decision-log.md b/docs/project-memory/shared-memory/decision-log.md
index 613743c51..ff08316df 100644
--- a/docs/project-memory/shared-memory/decision-log.md
+++ b/docs/project-memory/shared-memory/decision-log.md
@@ -54,6 +54,7 @@
 - 2026-06-18 桌面壳安装包身份：Tauri 桌面壳的产品名固定为 `Genarrative`，应用 identifier 固定为 `world.genarrative.desktop`，Tauri 配置、`apps/desktop-shell/package.json` 与 Cargo package 版本统一为 `0.1.0`；Release 主窗口只加载打包的 `index.html` 和根 `dist` H5 资产，dev URL 只指向本机 Vite 调试入口。桌面壳 CSP 保持 `script-src 'self'`，不得加入 `unsafe-eval`、`tauri:` 或 `file:`，也不得在没有真实端点、签名密钥和发布流程前配置 updater；检查脚本会拒绝包身份、版本、CSP 或 updater 约束漂移。
 - 2026-06-18 壳生产代码禁用临时替身：Expo 与 Tauri 壳的生产源码和配置不得出现 mock / fake / placeholder / stub / TODO / FIXME 以及对应中文脚手架词；测试文件仍可使用 mock。两端壳配置检查会扫描生产入口、配置和壳实现，防止把临时替身、占位文案或伪实现带进可分发壳。
 - 2026-06-18 移动壳启动页与 adaptive icon：Expo 移动壳启动页和 Android adaptive icon 复用现有真实品牌图标 `apps/mobile-shell/assets/icon.png`，背景色固定为 H5 壳根背景 `#fffdf9`。该 PNG 是 1024x1024 RGBA 透明前景品牌资产，不新增占位图；配置检查会校验图标尺寸、透明像素、splash 和 adaptive icon 指向，避免后续换成非品牌或占位素材。
+- 2026-06-18 桌面壳 bundle 图标集：Tauri 桌面壳从现有真实品牌 PNG `apps/desktop-shell/src-tauri/icons/icon.png` 派生 `32x32.png`、`128x128.png`、`128x128@2x.png`、`icon.ico` 和 `icon.icns`，并在 `bundle.icon` 中同时声明这些平台图标。检查脚本会校验 PNG 尺寸、ICO 多尺寸头部、ICNS 容器长度和 bundle 图标列表，避免后续退回单图标或替换为非品牌 / 占位素材。
 - 影响范围：`src/services/host-bridge/`、未来 `apps/mobile-shell/`、未来 `apps/desktop-shell/`、移动端支付 / 分享 / 深链 / 推送、桌面端系统能力、AI H5 sandbox 的 GameBridge 边界。
 - 验证方式：普通浏览器、小程序、Expo 壳、Tauri 壳都能返回正确 `getHostRuntime()`；未支持能力能回退 H5；固定玩法在各宿主中读取同一作品数据和运行态 snapshot；AI sandbox 无法直接调用 HostBridge；Tauri release 不允许任意远端页面调用桌面命令。
 - 关联文档：`docs/【前端架构】ExpoReactNative与Tauri宿主壳方案-2026-06-17.md`、`docs/【前端架构】宿主壳能力统一协议-2026-06-17.md`。
diff --git a/docs/【前端架构】ExpoReactNative与Tauri宿主壳方案-2026-06-17.md b/docs/【前端架构】ExpoReactNative与Tauri宿主壳方案-2026-06-17.md
index 6b8c7f769..591ffd049 100644
--- a/docs/【前端架构】ExpoReactNative与Tauri宿主壳方案-2026-06-17.md
+++ b/docs/【前端架构】ExpoReactNative与Tauri宿主壳方案-2026-06-17.md
@@ -311,6 +311,8 @@ GameBridge 禁止：
 
 2026-06-18 追加：移动壳启动页与 Android adaptive icon 复用现有真实品牌图标 `apps/mobile-shell/assets/icon.png`，背景色固定为 H5 壳根背景 `#fffdf9`。该 PNG 是 1024x1024 RGBA 透明前景品牌资产，不新增占位图；Expo `splash` 使用同一图标 `contain` 展示，Android `adaptiveIcon.foregroundImage` 使用同一透明前景图，`check-config.mjs` 会校验图标尺寸、透明像素、启动页和 adaptive icon 配置。
 
+2026-06-18 追加：桌面壳 bundle 图标集从现有真实品牌 PNG `apps/desktop-shell/src-tauri/icons/icon.png` 派生，补齐 `32x32.png`、`128x128.png`、`128x128@2x.png`、`icon.ico` 和 `icon.icns`，Tauri `bundle.icon` 同时声明这些平台图标。没有引入外部素材或占位图；`apps/desktop-shell/scripts/check-config.mjs` 会校验 PNG 尺寸、ICO 多尺寸头部、ICNS 容器长度和 bundle 图标列表，避免后续退回单图标或替换为非品牌素材。
+
 ### Phase 4：宿主能力扩展
 
 - 移动端接入系统分享、推送、原生登录和渠道支付。