diff --git a/.env.development b/.env.development
index f6fb6f0..f460cc1 100644
--- a/.env.development
+++ b/.env.development
@@ -1,2 +1,2 @@
 # 接口
-VITE_API=https://api.imyeyu.dev
\ No newline at end of file
+VITE_API=https://api.imyeyu.dev
diff --git a/.gitignore b/.gitignore
index 970c1c2..a30009a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,12 @@
+/.env.production
+/.eslintrc-auto-import.json
+/.claude
+/CLAUDE.md
+/AGENTS.md
+/components.d.ts
+/src/auto-imports.d.ts
+
+
 # Logs
 logs
 *.log
@@ -22,10 +31,3 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
-
-/.env.production
-/.eslintrc-auto-import.json
-/.claude
-/CLAUDE.md
-/components.d.ts
-/src/auto-imports.d.ts
diff --git a/src/api/ClipboardAPI.ts b/src/api/ClipboardAPI.ts
new file mode 100644
index 0000000..278f931
--- /dev/null
+++ b/src/api/ClipboardAPI.ts
@@ -0,0 +1,68 @@
+import { axios } from "timi-web";
+
+/** 共享剪切板请求 */
+interface ClipboardRequest {
+	content: string;
+}
+
+/** 构建共享剪切板 SSE 地址 */
+function buildStreamUrl(id: string): string {
+	const baseUrl = axios.defaults.baseURL || "";
+	const normalizedBaseUrl = baseUrl.endsWith("/") ? baseUrl.slice(0, -1) : baseUrl;
+	return `${normalizedBaseUrl}/clipboard/stream/${id}`;
+}
+
+/**
+ * 获取共享剪切板内容
+ *
+ * @param id 会话 ID
+ */
+async function getContent(id: string): Promise<string> {
+	// timi-web 响应拦截器已自动解包，直接返回内容
+	return axios.get(`/clipboard/${id}`);
+}
+
+/**
+ * 设置共享剪切板内容
+ *
+ * @param id 会话 ID
+ * @param content 剪切板内容
+ */
+async function setContent(id: string, content: string): Promise<void> {
+	const payload: ClipboardRequest = { content };
+	await axios.post(`/clipboard/${id}`, payload);
+}
+
+/**
+ * 订阅共享剪切板实时更新
+ *
+ * @param id 会话 ID
+ * @param onMessage 收到内容回调
+ * @param onError 连接错误回调
+ */
+function openStream(id: string, onMessage: (content: string) => void, onError?: () => void): EventSource {
+	const url = buildStreamUrl(id);
+	// 跨域 SSE 需要携带凭证
+	const source = new EventSource(url, { withCredentials: true });
+	source.addEventListener("open", () => {
+		console.debug("[Clipboard] SSE 连接已建立");
+	});
+	source.addEventListener("clipboard", (event) => {
+		const message = event as MessageEvent;
+		onMessage(String(message.data ?? ""));
+	});
+	source.addEventListener("error", (event) => {
+		console.debug("[Clipboard] SSE 连接错误", event);
+		source.close();
+		if (onError) {
+			onError();
+		}
+	});
+	return source;
+}
+
+export default {
+	getContent,
+	setContent,
+	openStream
+};
diff --git a/src/components/SharedClipboard.vue b/src/components/SharedClipboard.vue
new file mode 100644
index 0000000..8ce8033
--- /dev/null
+++ b/src/components/SharedClipboard.vue
@@ -0,0 +1,238 @@
+<template>
+	<div class="clipboard">
+		<t-collapse class="collapse" v-model="panels" expand-icon-placement="right">
+			<t-collapse-panel value="clipboard">
+				<template #header>
+					<div class="header">
+						<span class="title">共享剪切板</span>
+					</div>
+				</template>
+				<div class="panel">
+					<div class="row">
+						<span class="label">频道 ID</span>
+						<t-input
+							v-model="id"
+							placeholder="请输入频道 ID"
+							clearable
+						/>
+						<t-button
+							theme="default"
+							variant="outline"
+							:disabled="!isReady"
+							@click="refresh"
+						>
+							刷新
+						</t-button>
+					</div>
+					<t-textarea
+						class="textarea"
+						v-model="content"
+						:disabled="!isReady"
+						:placeholder="placeholder"
+					/>
+				</div>
+			</t-collapse-panel>
+		</t-collapse>
+	</div>
+</template>
+
+<script lang="ts" setup>
+import { MessagePlugin } from "tdesign-vue-next";
+import ClipboardAPI from "@/api/ClipboardAPI.ts";
+
+const panels = ref<string[]>([]);
+const id = ref("");
+const content = ref("");
+const loading = ref(false);
+const syncing = ref(false);
+const stream = ref<EventSource | null>(null);
+const syncTimer = ref<number | null>(null);
+const reconnectTimer = ref<number | null>(null);
+const remoteUpdating = ref(false);
+
+const isOpen = computed(() => panels.value.includes("clipboard"));
+const isReady = computed(() => 0 < id.value.trim().length);
+const placeholder = computed(() => isReady.value ? "输入内容实时同步" : "请输入频道 ID");
+
+/** 关闭 SSE 连接 */
+function closeStream() {
+	if (stream.value) {
+		stream.value.close();
+		stream.value = null;
+	}
+	if (reconnectTimer.value) {
+		clearTimeout(reconnectTimer.value);
+		reconnectTimer.value = null;
+	}
+}
+
+/** 更新内容（标记为远程更新，避免触发同步） */
+function updateContent(value: string) {
+	remoteUpdating.value = true;
+	content.value = value;
+	window.setTimeout(() => {
+		remoteUpdating.value = false;
+	}, 0);
+}
+
+/** 加载剪切板内容 */
+async function loadContent() {
+	const trimmedId = id.value.trim();
+	if (!(0 < trimmedId.length)) {
+		updateContent("");
+		return;
+	}
+	loading.value = true;
+	try {
+		const data = await ClipboardAPI.getContent(trimmedId);
+		updateContent(data || "");
+	} catch (error) {
+		await MessagePlugin.error("获取共享剪切板失败");
+	} finally {
+		loading.value = false;
+	}
+}
+
+/** 打开 SSE 连接 */
+function openStream() {
+	const trimmedId = id.value.trim();
+	if (!(0 < trimmedId.length)) {
+		return;
+	}
+	closeStream();
+	stream.value = ClipboardAPI.openStream(trimmedId, (data) => {
+		updateContent(data || "");
+	}, async () => {
+		closeStream();
+		if (!loading.value) {
+			await MessagePlugin.error("共享剪切板连接中断");
+		}
+		if (isOpen.value && isReady.value) {
+			reconnectTimer.value = window.setTimeout(() => {
+				openStream();
+			}, 1000);
+		}
+	});
+}
+
+/** 刷新剪切板 */
+async function refresh() {
+	if (!isReady.value) {
+		await MessagePlugin.warning("请先输入频道 ID");
+		return;
+	}
+	await loadContent();
+	openStream();
+}
+
+/** 同步内容到服务器 */
+async function syncContent() {
+	if (!isReady.value || syncing.value) {
+		return;
+	}
+	const trimmedId = id.value.trim();
+	syncing.value = true;
+	try {
+		await ClipboardAPI.setContent(trimmedId, content.value);
+	} catch (error) {
+		await MessagePlugin.error("同步共享剪切板失败");
+	} finally {
+		syncing.value = false;
+	}
+}
+
+/** 延迟同步 */
+function scheduleSync() {
+	if (!isReady.value) {
+		return;
+	}
+	if (syncTimer.value) {
+		clearTimeout(syncTimer.value);
+	}
+	syncTimer.value = window.setTimeout(async () => {
+		await syncContent();
+	}, 300);
+}
+
+watch([() => id.value, () => isOpen.value], async ([newId, open]) => {
+	closeStream();
+	if (!open) {
+		return;
+	}
+	const trimmedId = newId.trim();
+	if (!(0 < trimmedId.length)) {
+		updateContent("");
+		return;
+	}
+	await loadContent();
+	openStream();
+});
+
+watch(content, () => {
+	if (!isOpen.value || !isReady.value || remoteUpdating.value) {
+		return;
+	}
+	scheduleSync();
+});
+
+onBeforeUnmount(() => {
+	closeStream();
+	if (syncTimer.value) {
+		clearTimeout(syncTimer.value);
+	}
+});
+</script>
+
+<style lang="less" scoped>
+.clipboard {
+	--td-comp-margin-xxl: 0;
+
+	:deep(.t-collapse-panel__body),
+	:deep(.t-collapse-panel__header) {
+		border: none;
+	}
+
+	.collapse {
+		border: none;
+
+		.header {
+			gap: .5rem;
+			display: flex;
+			align-items: center;
+			justify-content: space-between;
+
+			.title {
+				font-size: 1rem;
+				font-weight: 600;
+			}
+
+			.desc {
+				font-size: .875rem;
+			}
+		}
+	}
+
+	.panel {
+		gap: .75rem;
+		display: flex;
+		padding: 1rem;
+		border-top: var(--tui-border);
+		flex-direction: column;
+
+		.row {
+			gap: .75rem;
+			display: flex;
+			align-items: center;
+
+			.label {
+				font-size: .875rem;
+				white-space: nowrap;
+			}
+		}
+
+		.textarea {
+			min-height: 6em;
+		}
+	}
+}
+</style>
diff --git a/src/views/Home.vue b/src/views/Home.vue
index 7816569..739d1d8 100644
--- a/src/views/Home.vue
+++ b/src/views/Home.vue
@@ -15,12 +15,15 @@
 			</template>
 		</t-alert>
 		<div class="content">
-			<div class="panel left">
-				<file-upload />
-			</div>
-			<div class="panel right">
-				<file-download />
-				<file-history-list />
+			<shared-clipboard />
+			<div class="file">
+				<div class="panel left">
+					<file-upload />
+				</div>
+				<div class="panel right">
+					<file-download />
+					<file-history-list />
+				</div>
 			</div>
 		</div>
 	</div>
@@ -30,6 +33,7 @@
 import FileUpload from "@/components/FileUpload.vue";
 import FileDownload from "@/components/FileDownload.vue";
 import FileHistoryList from "@/components/FileHistoryList.vue";
+import SharedClipboard from "@/components/SharedClipboard.vue";
 import { useFileHistoryStore } from "@/store/fileHistory.ts";
 import { SettingMapper, Time } from "../../../timi-web";
 
@@ -63,19 +67,25 @@ onMounted(() => setInterval(fileHistoryStore.cleanExpiredFiles, Time.S));
 		display: flex;
 		border-top: var(--tui-border);
 		border-bottom: var(--tui-border);
+		flex-direction: column;
 
-		.panel {
-			flex: 1;
+		.file {
+			display: flex;
+			border-top: var(--tui-border);
 
-			&:first-child {
-				border-right: var(--tui-border);
+			.panel {
+				flex: 1;
+
+				&:first-child {
+					border-right: var(--tui-border);
+				}
 			}
 		}
 	}
 }
 
 @media (max-width: 960px) {
-	.home .content {
+	.home .content .file {
 		flex-direction: column;
 
 		.panel:first-child {