diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9075b91..843fdeb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,8 +16,8 @@ jobs:
     name: Lint & Build
     runs-on: ubuntu-latest
     steps:
-      - uses: pnpm/action-setup@v6
       - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v6
         with:
           node-version: 22
@@ -37,8 +37,8 @@ jobs:
         os: ${{ (github.event_name == 'pull_request') && fromJson('["ubuntu-latest"]') || fromJson('["ubuntu-latest", "macos-latest", "windows-latest"]') }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: pnpm/action-setup@v6
       - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v6
         with:
           node-version: 22
@@ -60,8 +60,8 @@ jobs:
     needs: test
     runs-on: ubuntu-latest
     steps:
-      - uses: pnpm/action-setup@v6
       - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v6
         with:
           node-version: 22
@@ -105,8 +105,8 @@ jobs:
     runs-on: ubuntu-latest
     environment: production
     steps:
-      - uses: pnpm/action-setup@v6
       - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
       - uses: actions/setup-node@v6
         with:
           node-version: 22
diff --git a/package.json b/package.json
index a5007ba..ec2604b 100644
--- a/package.json
+++ b/package.json
@@ -314,6 +314,12 @@
 				"category": "Hyper Git",
 				"icon": "$(repo-fetch)"
 			},
+			{
+				"command": "hyperGit.pruneRemotes",
+				"title": "Prune Deleted Remote Branches",
+				"category": "Hyper Git",
+				"icon": "$(clear-all)"
+			},
 			{
 				"command": "hyperGit.cherryPick",
 				"title": "Cherry-Pick",
@@ -767,6 +773,11 @@
 					"when": "view == hyperGit.branches",
 					"group": "1_sync@1"
 				},
+				{
+					"command": "hyperGit.pruneRemotes",
+					"when": "view == hyperGit.branches",
+					"group": "1_sync@1.5"
+				},
 				{
 					"command": "hyperGit.updateProject",
 					"when": "view == hyperGit.branches",
diff --git a/src/adapter/history-commands.ts b/src/adapter/history-commands.ts
index d849fec..902bdea 100644
--- a/src/adapter/history-commands.ts
+++ b/src/adapter/history-commands.ts
@@ -8,7 +8,7 @@ import type { LogFilterControl, LogNode } from './webview/log-webview';
 import { handleGitConflict } from './conflict-ui';
 import type { MergeMode } from '../engine/log/log-filter';
 import { selectedBranchRefs } from './branch-selection';
-import { formatBranchDeleteConfirm, partitionByMerged, truncateNames } from '../engine/ref/cleanup';
+import { diffPrunedRefs, formatBranchDeleteConfirm, partitionByMerged, truncateNames } from '../engine/ref/cleanup';
 
 /** 注册 Log/Branches/Blame/History/Tags 相关命令。 */
 export function registerHistoryCommands(
@@ -321,12 +321,52 @@ export function registerHistoryCommands(
 			try {
 				await repo.fetch(pick.includes('Prune') ? { prune: true } : undefined);
 				branchesTree.refresh();
+				logTree.refresh();
 			} catch (e) {
 				void vscode.window.showErrorMessage(`Failed to Fetch: ${errMsg(e)}`);
 			}
 		}),
 	);
 
+	subs.push(
+		vscode.commands.registerCommand('hyperGit.pruneRemotes', async () => {
+			const repo = service.repo;
+			if (!repo) {
+				return;
+			}
+			const remotes = repo.state.remotes.map((r) => r.name);
+			if (remotes.length === 0) {
+				void vscode.window.showWarningMessage('No remote repository configured');
+				return;
+			}
+			// prune 前后对 refs/remotes 各快照一次，差集即为被清理的陈旧跟踪引用。
+			// `--prune` 的 [deleted] 明细走 stderr，execGit 仅回传 stdout，故用快照差集做循证反馈。
+			const before = await listRemoteTrackingRefs(service);
+			const failed: string[] = [];
+			// 逐 remote 执行 fetch --prune：API 的 FetchOptions 仅接受单 remote，遍历以覆盖多远程场景。
+			for (const remote of remotes) {
+				try {
+					await repo.fetch({ remote, prune: true });
+				} catch {
+					failed.push(remote);
+				}
+			}
+			const after = await listRemoteTrackingRefs(service);
+			const pruned = diffPrunedRefs(before, after);
+			branchesTree.refresh();
+			logTree.refresh();
+			if (pruned.length === 0) {
+				void vscode.window.showInformationMessage(
+					failed.length > 0 ? `Prune failed for: ${truncateNames(failed)}` : 'No stale remote branches to prune',
+				);
+			} else {
+				void vscode.window.showInformationMessage(
+					`Pruned ${pruned.length} stale remote branch(es): ${truncateNames(pruned)}`,
+				);
+			}
+		}),
+	);
+
 	// —— Branches 高级操作（Phase 1）——
 
 	subs.push(
@@ -632,3 +672,20 @@ export function registerHistoryCommands(
 
 	return subs;
 }
+
+/**
+ * 列出当前 `refs/remotes/*` 短名（如 `origin/master`），供 prune 前后做差集。
+ * 解析 `git for-each-ref --format=%(refname:short) refs/remotes`：逐行去空白、去空行。
+ * 失败返回空数组（非关键路径，调用方据此跳过差集）。
+ */
+async function listRemoteTrackingRefs(service: GitRepositoryService): Promise<string[]> {
+	try {
+		const out = await service.execGit(['for-each-ref', '--format=%(refname:short)', 'refs/remotes']);
+		return out
+			.split('\n')
+			.map((line) => line.trim())
+			.filter((line) => line.length > 0);
+	} catch {
+		return [];
+	}
+}
diff --git a/src/adapter/remote-commands.ts b/src/adapter/remote-commands.ts
index 62341b8..8a7318f 100644
--- a/src/adapter/remote-commands.ts
+++ b/src/adapter/remote-commands.ts
@@ -219,6 +219,7 @@ export function registerRemoteCommands(
 				}
 			}
 			branchesTree.refresh();
+			logTree.refresh();
 			if (failures.length === 0) {
 				void vscode.window.showInformationMessage(
 					succeeded.length === 1 ? `Deleted remote branch ${succeeded[0].shortName}` : `Deleted ${succeeded.length} remote branches`,
diff --git a/src/engine/ref/cleanup.ts b/src/engine/ref/cleanup.ts
index 8e0ccc0..0c72ef2 100644
--- a/src/engine/ref/cleanup.ts
+++ b/src/engine/ref/cleanup.ts
@@ -61,6 +61,20 @@ export function partitionByMerged(
 	return { merged, unmerged };
 }
 
+/**
+ * 计算被 `git fetch --prune` 清理掉的远程跟踪引用：before 有、after 无的差集（保 before 顺序）。
+ *
+ * 用途：`--prune` 的 `[deleted]` 逐行输出走 stderr，{@link GitRepositoryService.execGit} 仅回传 stdout，
+ * 故无法直接解析清理明细；改为 prune 前后对 `refs/remotes` 各快照一次（`for-each-ref`），以此差集
+ * 给出循证反馈。纯逻辑、零 vscode 依赖，便于单测。
+ * @param before prune 前 `refs/remotes/*` 短名列表（如 `['origin/feat-a', 'origin/master']`）
+ * @param after  prune 后 `refs/remotes/*` 短名列表
+ */
+export function diffPrunedRefs(before: readonly string[], after: readonly string[]): string[] {
+	const remaining = new Set(after);
+	return before.filter((name) => !remaining.has(name));
+}
+
 /** 名称列表内联展示：超过 max 个则截断并标注剩余数量，避免确认弹窗过长。 */
 export function truncateNames(names: readonly string[], max = 8): string {
 	if (names.length <= max) {
diff --git a/tests/unit/ref-cleanup.test.ts b/tests/unit/ref-cleanup.test.ts
index 89d3a76..a20d092 100644
--- a/tests/unit/ref-cleanup.test.ts
+++ b/tests/unit/ref-cleanup.test.ts
@@ -1,5 +1,6 @@
 import { describe, it, expect } from 'vitest';
 import {
+	diffPrunedRefs,
 	filterMergeable,
 	formatBranchDeleteConfirm,
 	isProtectedBranch,
@@ -75,6 +76,34 @@ describe('truncateNames', () => {
 	});
 });
 
+describe('diffPrunedRefs', () => {
+	it('返回 before 有、after 无的引用（保 before 顺序）', () => {
+		const before = ['origin/feat-a', 'origin/master', 'origin/feat-b'];
+		const after = ['origin/master'];
+		// feat-a / feat-b 被清理，master 保留；顺序跟随 before
+		expect(diffPrunedRefs(before, after)).toEqual(['origin/feat-a', 'origin/feat-b']);
+	});
+
+	it('无可清理时返回空数组', () => {
+		const refs = ['origin/main', 'origin/dev'];
+		expect(diffPrunedRefs(refs, refs)).toEqual([]);
+	});
+
+	it('after 新增引用不影响差集（仅关心被移除项）', () => {
+		const before = ['origin/a'];
+		const after = ['origin/a', 'origin/b'];
+		expect(diffPrunedRefs(before, after)).toEqual([]);
+	});
+
+	it('全部被清理', () => {
+		expect(diffPrunedRefs(['origin/x', 'origin/y'], [])).toEqual(['origin/x', 'origin/y']);
+	});
+
+	it('空 before 永远为空', () => {
+		expect(diffPrunedRefs([], ['origin/a'])).toEqual([]);
+	});
+});
+
 describe('formatBranchDeleteConfirm', () => {
 	it('单个已合并 → 安全删除文案', () => {
 		expect(formatBranchDeleteConfirm(['feat'], [])).toEqual({ detail: '分支「feat」已合并，可安全删除。', confirmLabel: '删除' });