diff --git a/packages/editor-app/src/App.tsx b/packages/editor-app/src/App.tsx
index 2369afaa..318c52f5 100644
--- a/packages/editor-app/src/App.tsx
+++ b/packages/editor-app/src/App.tsx
@@ -8,11 +8,12 @@ import { EntityInspector } from './components/EntityInspector';
 import { AssetBrowser } from './components/AssetBrowser';
 import { ConsolePanel } from './components/ConsolePanel';
 import { Viewport } from './components/Viewport';
+import { MenuBar } from './components/MenuBar';
 import { DockContainer, DockablePanel } from './components/DockContainer';
 import { TauriAPI } from './api/tauri';
 import { useLocale } from './hooks/useLocale';
 import { en, zh } from './locales';
-import { Plus, Trash2, Loader2, Globe } from 'lucide-react';
+import { Loader2, Globe } from 'lucide-react';
 import './styles/App.css';
 
 const coreInstance = Core.create({ debug: true });
@@ -146,22 +147,30 @@ function App() {
     console.log('Create project not implemented yet');
   };
 
-  const handleCreateEntity = () => {
-    if (!initialized || !entityStore) return;
-    const scene = Core.scene;
-    if (!scene) return;
-
-    const entity = scene.createEntity('Entity');
-    entityStore.addEntity(entity);
+  const handleNewScene = () => {
+    console.log('New scene not implemented yet');
   };
 
-  const handleDeleteEntity = () => {
-    if (!entityStore) return;
-    const selected = entityStore.getSelectedEntity();
-    if (selected) {
-      selected.destroy();
-      entityStore.removeEntity(selected);
-    }
+  const handleOpenScene = () => {
+    console.log('Open scene not implemented yet');
+  };
+
+  const handleSaveScene = () => {
+    console.log('Save scene not implemented yet');
+  };
+
+  const handleSaveSceneAs = () => {
+    console.log('Save scene as not implemented yet');
+  };
+
+  const handleCloseProject = () => {
+    setProjectLoaded(false);
+    setCurrentProjectPath(null);
+    setStatus(t('header.status.ready'));
+  };
+
+  const handleExit = () => {
+    window.close();
   };
 
   const handleLocaleChange = () => {
@@ -242,21 +251,22 @@ function App() {
   return (
     <div className="editor-container">
       <div className="editor-header">
-        <h1>{t('app.title')}</h1>
-        <div className="header-toolbar">
-          <button onClick={handleCreateEntity} disabled={!initialized} className="toolbar-btn">
-            <Plus size={14} />
-            {t('header.toolbar.createEntity')}
-          </button>
-          <button onClick={handleDeleteEntity} disabled={!entityStore?.getSelectedEntity()} className="toolbar-btn">
-            <Trash2 size={14} />
-            {t('header.toolbar.deleteEntity')}
-          </button>
+        <MenuBar
+          locale={locale}
+          onNewScene={handleNewScene}
+          onOpenScene={handleOpenScene}
+          onSaveScene={handleSaveScene}
+          onSaveSceneAs={handleSaveSceneAs}
+          onOpenProject={handleOpenProject}
+          onCloseProject={handleCloseProject}
+          onExit={handleExit}
+        />
+        <div className="header-right">
           <button onClick={handleLocaleChange} className="toolbar-btn locale-btn" title={locale === 'en' ? '切换到中文' : 'Switch to English'}>
             <Globe size={14} />
           </button>
+          <span className="status">{status}</span>
         </div>
-        <span className="status">{status}</span>
       </div>
 
       <div className="editor-content">
diff --git a/packages/editor-app/src/components/MenuBar.tsx b/packages/editor-app/src/components/MenuBar.tsx
new file mode 100644
index 00000000..3bc3195e
--- /dev/null
+++ b/packages/editor-app/src/components/MenuBar.tsx
@@ -0,0 +1,193 @@
+import { useState, useRef, useEffect } from 'react';
+import '../styles/MenuBar.css';
+
+interface MenuItem {
+  label: string;
+  shortcut?: string;
+  disabled?: boolean;
+  separator?: boolean;
+  submenu?: MenuItem[];
+  onClick?: () => void;
+}
+
+interface MenuBarProps {
+  locale?: string;
+  onNewScene?: () => void;
+  onOpenScene?: () => void;
+  onSaveScene?: () => void;
+  onSaveSceneAs?: () => void;
+  onOpenProject?: () => void;
+  onCloseProject?: () => void;
+  onExit?: () => void;
+}
+
+export function MenuBar({
+  locale = 'en',
+  onNewScene,
+  onOpenScene,
+  onSaveScene,
+  onSaveSceneAs,
+  onOpenProject,
+  onCloseProject,
+  onExit
+}: MenuBarProps) {
+  const [openMenu, setOpenMenu] = useState<string | null>(null);
+  const menuRef = useRef<HTMLDivElement>(null);
+
+  const t = (key: string) => {
+    const translations: Record<string, Record<string, string>> = {
+      en: {
+        file: 'File',
+        newScene: 'New Scene',
+        openScene: 'Open Scene',
+        saveScene: 'Save Scene',
+        saveSceneAs: 'Save Scene As...',
+        openProject: 'Open Project',
+        closeProject: 'Close Project',
+        exit: 'Exit',
+        edit: 'Edit',
+        undo: 'Undo',
+        redo: 'Redo',
+        cut: 'Cut',
+        copy: 'Copy',
+        paste: 'Paste',
+        delete: 'Delete',
+        selectAll: 'Select All',
+        window: 'Window',
+        sceneHierarchy: 'Scene Hierarchy',
+        inspector: 'Inspector',
+        assets: 'Assets',
+        console: 'Console',
+        viewport: 'Viewport',
+        help: 'Help',
+        documentation: 'Documentation',
+        about: 'About'
+      },
+      zh: {
+        file: '文件',
+        newScene: '新建场景',
+        openScene: '打开场景',
+        saveScene: '保存场景',
+        saveSceneAs: '场景另存为...',
+        openProject: '打开项目',
+        closeProject: '关闭项目',
+        exit: '退出',
+        edit: '编辑',
+        undo: '撤销',
+        redo: '重做',
+        cut: '剪切',
+        copy: '复制',
+        paste: '粘贴',
+        delete: '删除',
+        selectAll: '全选',
+        window: '窗口',
+        sceneHierarchy: '场景层级',
+        inspector: '检视器',
+        assets: '资产',
+        console: '控制台',
+        viewport: '视口',
+        help: '帮助',
+        documentation: '文档',
+        about: '关于'
+      }
+    };
+    return translations[locale]?.[key] || key;
+  };
+
+  const menus: Record<string, MenuItem[]> = {
+    file: [
+      { label: t('newScene'), shortcut: 'Ctrl+N', onClick: onNewScene },
+      { label: t('openScene'), shortcut: 'Ctrl+O', onClick: onOpenScene },
+      { separator: true },
+      { label: t('saveScene'), shortcut: 'Ctrl+S', onClick: onSaveScene },
+      { label: t('saveSceneAs'), shortcut: 'Ctrl+Shift+S', onClick: onSaveSceneAs },
+      { separator: true },
+      { label: t('openProject'), onClick: onOpenProject },
+      { label: t('closeProject'), onClick: onCloseProject },
+      { separator: true },
+      { label: t('exit'), onClick: onExit }
+    ],
+    edit: [
+      { label: t('undo'), shortcut: 'Ctrl+Z', disabled: true },
+      { label: t('redo'), shortcut: 'Ctrl+Y', disabled: true },
+      { separator: true },
+      { label: t('cut'), shortcut: 'Ctrl+X', disabled: true },
+      { label: t('copy'), shortcut: 'Ctrl+C', disabled: true },
+      { label: t('paste'), shortcut: 'Ctrl+V', disabled: true },
+      { label: t('delete'), shortcut: 'Delete', disabled: true },
+      { separator: true },
+      { label: t('selectAll'), shortcut: 'Ctrl+A', disabled: true }
+    ],
+    window: [
+      { label: t('sceneHierarchy'), disabled: true },
+      { label: t('inspector'), disabled: true },
+      { label: t('assets'), disabled: true },
+      { label: t('console'), disabled: true },
+      { label: t('viewport'), disabled: true }
+    ],
+    help: [
+      { label: t('documentation'), disabled: true },
+      { separator: true },
+      { label: t('about'), disabled: true }
+    ]
+  };
+
+  useEffect(() => {
+    const handleClickOutside = (event: MouseEvent) => {
+      if (menuRef.current && !menuRef.current.contains(event.target as Node)) {
+        setOpenMenu(null);
+      }
+    };
+
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => {
+      document.removeEventListener('mousedown', handleClickOutside);
+    };
+  }, []);
+
+  const handleMenuClick = (menuKey: string) => {
+    setOpenMenu(openMenu === menuKey ? null : menuKey);
+  };
+
+  const handleMenuItemClick = (item: MenuItem) => {
+    if (!item.disabled && !item.separator && item.onClick) {
+      item.onClick();
+      setOpenMenu(null);
+    }
+  };
+
+  return (
+    <div className="menu-bar" ref={menuRef}>
+      {Object.keys(menus).map(menuKey => (
+        <div key={menuKey} className="menu-item">
+          <button
+            className={`menu-button ${openMenu === menuKey ? 'active' : ''}`}
+            onClick={() => handleMenuClick(menuKey)}
+          >
+            {t(menuKey)}
+          </button>
+          {openMenu === menuKey && (
+            <div className="menu-dropdown">
+              {menus[menuKey].map((item, index) => {
+                if (item.separator) {
+                  return <div key={index} className="menu-separator" />;
+                }
+                return (
+                  <button
+                    key={index}
+                    className={`menu-dropdown-item ${item.disabled ? 'disabled' : ''}`}
+                    onClick={() => handleMenuItemClick(item)}
+                    disabled={item.disabled}
+                  >
+                    <span>{item.label}</span>
+                    {item.shortcut && <span className="menu-shortcut">{item.shortcut}</span>}
+                  </button>
+                );
+              })}
+            </div>
+          )}
+        </div>
+      ))}
+    </div>
+  );
+}
diff --git a/packages/editor-app/src/styles/App.css b/packages/editor-app/src/styles/App.css
index ad4415e2..cfebb5d2 100644
--- a/packages/editor-app/src/styles/App.css
+++ b/packages/editor-app/src/styles/App.css
@@ -27,7 +27,7 @@
 .editor-header {
   display: flex;
   align-items: center;
-  gap: var(--spacing-lg);
+  justify-content: space-between;
   height: var(--layout-header-height);
   padding: 0 var(--spacing-lg);
   background-color: var(--color-bg-elevated);
@@ -35,19 +35,11 @@
   flex-shrink: 0;
 }
 
-.editor-header h1 {
-  font-size: var(--font-size-base);
-  font-weight: var(--font-weight-semibold);
-  color: var(--color-text-primary);
-  margin: 0;
-  letter-spacing: -0.01em;
-}
-
-.header-toolbar {
+.header-right {
   display: flex;
   align-items: center;
-  gap: var(--spacing-sm);
-  flex: 1;
+  gap: var(--spacing-md);
+  margin-left: auto;
 }
 
 .toolbar-btn {
@@ -99,15 +91,17 @@
 
 .locale-btn {
   width: var(--size-button-sm);
+  height: var(--size-button-sm);
   padding: 0;
-  background-color: var(--color-bg-overlay);
+  background-color: transparent;
   color: var(--color-text-primary);
-  font-weight: var(--font-weight-semibold);
+  border: 1px solid var(--color-border-default);
 }
 
 .locale-btn:hover:not(:disabled) {
   background-color: var(--color-bg-hover);
   color: var(--color-primary);
+  border-color: var(--color-primary);
 }
 
 .editor-header .status {
diff --git a/packages/editor-app/src/styles/MenuBar.css b/packages/editor-app/src/styles/MenuBar.css
new file mode 100644
index 00000000..50523af9
--- /dev/null
+++ b/packages/editor-app/src/styles/MenuBar.css
@@ -0,0 +1,82 @@
+.menu-bar {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+  height: 100%;
+  user-select: none;
+}
+
+.menu-item {
+  position: relative;
+}
+
+.menu-button {
+  height: 32px;
+  padding: 0 12px;
+  background: transparent;
+  border: none;
+  color: var(--color-text-primary, #cccccc);
+  font-size: 13px;
+  cursor: pointer;
+  transition: background-color 0.15s;
+  border-radius: 3px;
+}
+
+.menu-button:hover {
+  background-color: var(--color-bg-hover, rgba(255, 255, 255, 0.1));
+}
+
+.menu-button.active {
+  background-color: var(--color-bg-active, rgba(255, 255, 255, 0.15));
+}
+
+.menu-dropdown {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  min-width: 200px;
+  background: var(--color-bg-elevated, #252526);
+  border: 1px solid var(--color-border-default, #3e3e42);
+  border-radius: 4px;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
+  padding: 4px 0;
+  z-index: 1000;
+  margin-top: 2px;
+}
+
+.menu-dropdown-item {
+  width: 100%;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 6px 16px;
+  background: transparent;
+  border: none;
+  color: var(--color-text-primary, #cccccc);
+  font-size: 13px;
+  cursor: pointer;
+  text-align: left;
+  transition: background-color 0.15s;
+}
+
+.menu-dropdown-item:hover:not(.disabled) {
+  background-color: var(--color-bg-hover, rgba(255, 255, 255, 0.1));
+}
+
+.menu-dropdown-item.disabled {
+  color: var(--color-text-disabled, #6e6e6e);
+  cursor: not-allowed;
+  opacity: 0.5;
+}
+
+.menu-shortcut {
+  margin-left: 24px;
+  color: var(--color-text-secondary, #858585);
+  font-size: 12px;
+}
+
+.menu-separator {
+  height: 1px;
+  background-color: var(--color-border-default, #3e3e42);
+  margin: 4px 8px;
+}
diff --git a/packages/editor-app/src/styles/StartupPage.css b/packages/editor-app/src/styles/StartupPage.css
index f4fe870a..8c408065 100644
--- a/packages/editor-app/src/styles/StartupPage.css
+++ b/packages/editor-app/src/styles/StartupPage.css
@@ -1,138 +1,131 @@
 .startup-page {
   display: flex;
   flex-direction: column;
+  width: 100%;
   height: 100vh;
-  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
-  color: #e0e0e0;
-  overflow: hidden;
+  background-color: #1e1e1e;
+  color: #cccccc;
 }
 
 .startup-header {
-  text-align: center;
-  padding: 60px 20px 40px;
-  background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
+  padding: 60px 40px 40px;
 }
 
 .startup-title {
-  font-size: 3rem;
-  font-weight: 700;
-  margin: 0;
-  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-  -webkit-background-clip: text;
-  -webkit-text-fill-color: transparent;
-  background-clip: text;
+  font-size: 32px;
+  font-weight: 300;
+  color: #ffffff;
+  margin: 0 0 8px 0;
+  letter-spacing: -0.5px;
 }
 
 .startup-subtitle {
-  font-size: 1.2rem;
-  color: #a0a0a0;
-  margin: 10px 0 0;
+  font-size: 14px;
+  font-weight: 400;
+  color: #858585;
+  margin: 0;
 }
 
 .startup-content {
   flex: 1;
   display: flex;
-  flex-direction: column;
-  align-items: center;
-  padding: 20px;
-  overflow-y: auto;
+  gap: 60px;
+  padding: 0 40px;
+  overflow: auto;
 }
 
 .startup-actions {
   display: flex;
-  gap: 20px;
-  margin-bottom: 60px;
+  flex-direction: column;
+  gap: 12px;
+  min-width: 280px;
 }
 
 .startup-action-btn {
   display: flex;
-  flex-direction: column;
   align-items: center;
-  gap: 15px;
-  padding: 40px 60px;
-  background: rgba(255, 255, 255, 0.05);
-  border: 2px solid rgba(255, 255, 255, 0.1);
-  border-radius: 12px;
-  color: #e0e0e0;
-  font-size: 1.1rem;
-  font-weight: 500;
+  gap: 12px;
+  padding: 12px 16px;
+  background-color: #2d2d30;
+  border: 1px solid #3e3e42;
+  border-radius: 2px;
+  color: #cccccc;
+  font-size: 13px;
   cursor: pointer;
-  transition: all 0.3s ease;
-  min-width: 200px;
+  transition: all 0.15s;
+  text-align: left;
 }
 
 .startup-action-btn:hover {
-  background: rgba(255, 255, 255, 0.1);
-  border-color: rgba(255, 255, 255, 0.3);
-  transform: translateY(-2px);
-  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
+  background-color: #37373d;
+  border-color: #007acc;
 }
 
 .startup-action-btn.primary {
-  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
-  border-color: transparent;
+  background-color: #0e639c;
+  border-color: #0e639c;
+  color: #ffffff;
 }
 
 .startup-action-btn.primary:hover {
-  background: linear-gradient(135deg, #7a8ef0 0%, #8a5cb2 100%);
-  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
+  background-color: #1177bb;
+  border-color: #1177bb;
 }
 
 .btn-icon {
-  width: 48px;
-  height: 48px;
-  stroke-width: 2;
+  width: 20px;
+  height: 20px;
+  flex-shrink: 0;
 }
 
 .startup-recent {
-  width: 100%;
-  max-width: 800px;
+  flex: 1;
+  max-width: 600px;
 }
 
 .recent-title {
-  font-size: 1.5rem;
+  font-size: 13px;
   font-weight: 600;
-  margin: 0 0 20px;
-  color: #f0f0f0;
+  color: #cccccc;
+  margin: 0 0 16px 0;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
 }
 
 .recent-empty {
-  text-align: center;
-  color: #808080;
-  padding: 40px;
-  font-size: 1.1rem;
+  font-size: 13px;
+  color: #858585;
+  margin: 0;
 }
 
 .recent-list {
   list-style: none;
   padding: 0;
   margin: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 1px;
 }
 
 .recent-item {
   display: flex;
   align-items: center;
-  gap: 15px;
-  padding: 15px 20px;
-  margin-bottom: 10px;
-  background: rgba(255, 255, 255, 0.03);
-  border: 1px solid rgba(255, 255, 255, 0.1);
-  border-radius: 8px;
+  gap: 12px;
+  padding: 10px 12px;
+  background-color: transparent;
+  border-radius: 2px;
   cursor: pointer;
-  transition: all 0.2s ease;
+  transition: background-color 0.15s;
 }
 
-.recent-item:hover,
-.recent-item.hovered {
-  background: rgba(255, 255, 255, 0.08);
-  border-color: rgba(102, 126, 234, 0.5);
-  transform: translateX(4px);
+.recent-item:hover {
+  background-color: #2a2d2e;
 }
 
 .recent-icon {
-  width: 32px;
-  height: 32px;
-  color: #667eea;
+  width: 16px;
+  height: 16px;
+  color: #858585;
   flex-shrink: 0;
 }
 
@@ -142,42 +135,28 @@
 }
 
 .recent-name {
-  font-size: 1.1rem;
-  font-weight: 500;
-  color: #f0f0f0;
-  margin-bottom: 4px;
+  font-size: 13px;
+  color: #cccccc;
+  margin-bottom: 2px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
 }
 
 .recent-path {
-  font-size: 0.9rem;
-  color: #808080;
+  font-size: 11px;
+  color: #6e6e6e;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
 .startup-footer {
-  padding: 20px;
-  text-align: center;
-  background: rgba(0, 0, 0, 0.2);
-  border-top: 1px solid rgba(255, 255, 255, 0.1);
+  padding: 20px 40px;
+  border-top: 1px solid #2d2d30;
 }
 
 .startup-version {
-  color: #606060;
-  font-size: 0.9rem;
-}
-
-@media (max-width: 768px) {
-  .startup-actions {
-    flex-direction: column;
-  }
-
-  .startup-action-btn {
-    width: 100%;
-  }
-
-  .startup-title {
-    font-size: 2rem;
-  }
+  font-size: 11px;
+  color: #6e6e6e;
 }