diff --git a/frontend/src/components/FileSystem/components/Sidebar.vue b/frontend/src/components/FileSystem/components/Sidebar.vue
index d0dfd41..f4f5303 100644
--- a/frontend/src/components/FileSystem/components/Sidebar.vue
+++ b/frontend/src/components/FileSystem/components/Sidebar.vue
@@ -79,7 +79,7 @@
             @dragend="handleDragEnd"
           >
             <span class="sidebar-item-icon">{{ getFileIcon(fav) }}</span>
-            <span class="sidebar-item-name" :title="fav.name">{{ fav.name }}</span>
+            <span class="sidebar-item-name" :title="favoriteTooltip(fav)">{{ favoriteName(fav) }}</span>
             <a-button
               type="text"
               size="mini"
@@ -91,6 +91,17 @@
                 <icon-pushpin :style="{ opacity: fav.pinnedAt ? 1 : 0.4 }" />
               </template>
             </a-button>
+            <a-button
+              type="text"
+              size="mini"
+              title="重命名收藏"
+              @click.stop="openRename(fav)"
+              class="sidebar-item-rename"
+            >
+              <template #icon>
+                <icon-edit />
+              </template>
+            </a-button>
             <a-button
               type="text"
               size="mini"
@@ -131,6 +142,25 @@
     </div>
   </transition>
 
+  <!-- 重命名收藏弹窗 -->
+  <a-modal
+    :visible="renameVisible"
+    title="重命名收藏"
+    :width="420"
+    :mask-closable="false"
+    unmount-on-close
+    @cancel="renameVisible = false"
+    @before-ok="handleRenameOk"
+  >
+    <a-input
+      ref="renameInputRef"
+      v-model="renameValue"
+      :placeholder="renameOriginal"
+      :max-length="255"
+      allow-clear
+    />
+  </a-modal>
+
   <!-- 更多操作子菜单 — Teleport 到 body -->
   <Teleport to="body">
     <div v-if="moreOpenId" class="sidebar-popup more-menu" :style="moreMenuStyle" @click.stop>
@@ -165,12 +195,12 @@
 </template>
 
 <script setup lang="ts">
-import { ref, computed, shallowRef, onMounted, onUnmounted } from 'vue'
+import { ref, computed, shallowRef, watch, onMounted, onUnmounted } from 'vue'
 import type { SidebarConfig, FavoriteFile } from '@/types/file-system'
 import type { SystemInfo } from '@/api/connection-manager'
 import { connectionManager } from '@/api/connection-manager'
 import { useConfigStore } from '@/stores/config'
-import { IconStar, IconClose, IconPushpin, IconDown, IconRight, IconStorage, IconComputer, IconDesktop, IconPlus, IconCheckCircle } from '@arco-design/web-vue/es/icon'
+import { IconStar, IconClose, IconPushpin, IconEdit, IconDown, IconRight, IconStorage, IconComputer, IconDesktop, IconPlus, IconCheckCircle } from '@arco-design/web-vue/es/icon'
 import { getFileIcon } from '@/utils/fileUtils'
 
 const configStore = useConfigStore()
@@ -182,9 +212,9 @@ interface Props {
 
 const props = defineProps<Props>()
 
-// 折叠状态（组件内部，不污染父组件）
+// 折叠状态（组件内部，不污染父组件）；收藏夹默认展开，用户手动折叠后会话内保持
 const serverCollapsed = ref(false)
-const favCollapsed = ref(true)
+const favCollapsed = ref(false)
 const helpCollapsed = ref(true)
 
 // 侧边栏区块可见性（从配置读取）
@@ -343,6 +373,7 @@ interface Emits {
   (e: 'openFavorite', file: FavoriteFile): void
   (e: 'removeFavorite', path: string): void
   (e: 'togglePin', path: string): void
+  (e: 'renameFavorite', path: string, displayName: string): void
   (e: 'longPressStart', event: MouseEvent | TouchEvent, index: number): void
   (e: 'longPressCancel'): void
   (e: 'dragStart', event: DragEvent, index: number): void
@@ -368,6 +399,57 @@ const handleTogglePin = (file: FavoriteFile) => {
   emit('togglePin', file.path)
 }
 
+// 重命名收藏弹窗（预填展示名，placeholder 显示原名）
+const renameVisible = ref(false)
+const renameValue = ref('')
+const renameTarget = ref<FavoriteFile | null>(null)
+const renameInputRef = ref()
+const renameOriginal = computed(() => renameTarget.value?.name ?? '')
+
+const openRename = (fav: FavoriteFile) => {
+  renameTarget.value = fav
+  renameValue.value = fav.displayName || ''
+  renameVisible.value = true
+}
+
+watch(renameVisible, (val) => {
+  if (!val) return
+  setTimeout(() => {
+    renameInputRef.value?.focus()
+  }, 100)
+})
+
+const handleRenameOk = (done: (closed?: boolean) => void) => {
+  if (!renameTarget.value) {
+    done(false)
+    return
+  }
+  // 空值表示清除展示名，回退显示原名
+  emit('renameFavorite', renameTarget.value.path, renameValue.value.trim())
+  done()
+}
+
+// 展示名优先，未设置回退原名
+const favoriteName = (fav: FavoriteFile): string => fav.displayName || fav.name
+
+// 悬停提示两行：完整路径 + 来源连接名
+const favoriteTooltip = (fav: FavoriteFile): string => {
+  const source = favoriteSourceName(fav)
+  return source ? `${fav.path}\n来源：${source}` : fav.path
+}
+
+function favoriteSourceName(fav: FavoriteFile): string {
+  if (fav.profileId) {
+    return connectionManager.profiles.find(p => p.id === fav.profileId)?.name ?? ''
+  }
+  // 旧数据无 profileId，按路径格式推断连接（与加载迁移逻辑一致）
+  const isLocalPath = /^[A-Za-z]:/.test(fav.path) || fav.path.startsWith('\\\\')
+  if (isLocalPath) {
+    return connectionManager.profiles.find(p => p.type === 'local')?.name ?? '本地'
+  }
+  return connectionManager.profiles.find(p => p.type !== 'local')?.name ?? ''
+}
+
 const handleLongPressStart = (event: MouseEvent | TouchEvent, index: number) => {
   emit('longPressStart', event, index)
 }
@@ -844,6 +926,15 @@ function handleDelete(p: { id: string; name: string }) {
   opacity: 1;
 }
 
+.sidebar-item-rename {
+  opacity: 0;
+  transition: opacity 0.2s;
+}
+
+.sidebar-item:hover .sidebar-item-rename {
+  opacity: 1;
+}
+
 /* 空状态 */
 .sidebar-empty {
   display: flex;
diff --git a/frontend/src/components/FileSystem/composables/useFavorites.ts b/frontend/src/components/FileSystem/composables/useFavorites.ts
index 4b4ccc8..2f370d3 100644
--- a/frontend/src/components/FileSystem/composables/useFavorites.ts
+++ b/frontend/src/components/FileSystem/composables/useFavorites.ts
@@ -173,6 +173,17 @@ export function useFavorites() {
     return !!fav?.pinnedAt
   }
 
+  /**
+   * 设置收藏项展示名（空串表示清除，显示时回退原名）
+   */
+  const renameFavorite = (path: string, displayName: string) => {
+    const normalizedPath = normalizePath(path)
+    const fav = favorites.value.find(f => normalizePath(f.path) === normalizedPath)
+    if (!fav) return
+    fav.displayName = displayName
+    saveFavorites()
+  }
+
   /**
    * 更新收藏项路径（重命名时使用，保留置顶状态和添加时间）
    */
@@ -268,6 +279,7 @@ export function useFavorites() {
     isFavorite,
     togglePin,
     isPinned,
+    renameFavorite,
     updateFavoritePath,
 
     onLongPressStart,
diff --git a/frontend/src/components/FileSystem/index.vue b/frontend/src/components/FileSystem/index.vue
index 902fbbd..2250e20 100644
--- a/frontend/src/components/FileSystem/index.vue
+++ b/frontend/src/components/FileSystem/index.vue
@@ -9,6 +9,7 @@
         @open-favorite="handleOpenFavorite"
         @remove-favorite="handleRemoveFavorite"
         @toggle-pin="handleToggleFavPin"
+        @rename-favorite="handleRenameFavorite"
         @long-press-start="handleLongPressStart"
         @long-press-cancel="handleLongPressCancel"
         @drag-start="handleDragStart"
@@ -305,7 +306,7 @@ const { clipboard, clipboardEmpty, setCopy, setCut, clear: clearClipboard } = us
 const transferStore = useTransferStore()
 
 // 收藏夹
-const { favorites, draggingState, toggleFavorite: toggleFav, removeFavorite: removeFav, isFavorite, togglePin, updateFavoritePath, onLongPressStart, onLongPressCancel, onDragStart, onDragOver, onDrop, onDragEnd } = useFavorites()
+const { favorites, draggingState, toggleFavorite: toggleFav, removeFavorite: removeFav, isFavorite, togglePin, renameFavorite: renameFav, updateFavoritePath, onLongPressStart, onLongPressCancel, onDragStart, onDragOver, onDrop, onDragEnd } = useFavorites()
 
 // 路径导航
 const { filePath, history, navigate, back, forward, onPathSelect, onPathEnter, browseDirectory, getParentPath, getProfileIdForPath } =
@@ -691,6 +692,10 @@ const handleToggleFavPin = (path: string) => {
   togglePin(path)
 }
 
+const handleRenameFavorite = (path: string, displayName: string) => {
+  renameFav(path, displayName)
+}
+
 const handleLongPressStart = (event: MouseEvent | TouchEvent, index: number) => {
   onLongPressStart(event, index)
 }
diff --git a/frontend/src/types/file-system.ts b/frontend/src/types/file-system.ts
index 51d69f6..64d5b68 100644
--- a/frontend/src/types/file-system.ts
+++ b/frontend/src/types/file-system.ts
@@ -33,6 +33,8 @@ export interface FavoriteFile extends FileItem {
   pinnedAt?: number
   /** 关联的连接配置 ID，用于打开收藏时自动切换连接 */
   profileId?: string
+  /** 展示名，空串或缺省表示未设置（显示时回退原名） */
+  displayName?: string
 }
 
 /**