diff --git a/src/elderly/services/messageService.ts b/src/elderly/services/messageService.ts
new file mode 100644
index 0000000..769cfa7
--- /dev/null
+++ b/src/elderly/services/messageService.ts
@@ -0,0 +1,165 @@
+/**
+ * 老人端留言服务
+ * 负责获取待播报的留言、标记已播放、点赞等操作
+ */
+
+const API_BASE_URL = 'http://localhost:8000/api';
+
+export interface ElderlyMessage {
+  id: number;
+  family_id: string;
+  content: string;
+  sender_name: string;
+  sender_relation: string;
+  scheduled_time: string;
+  played: boolean;
+  played_at?: string;
+  liked: boolean;
+  is_active: boolean;
+  created_at: string;
+  updated_at: string;
+}
+
+/**
+ * 获取所有留言（按预约时间排序）
+ */
+export async function getMessages(familyId: string): Promise<ElderlyMessage[]> {
+  try {
+    const response = await fetch(
+      `${API_BASE_URL}/elderly/messages?family_id=${familyId}`
+    );
+
+    if (!response.ok) {
+      throw new Error(`获取留言失败: ${response.statusText}`);
+    }
+
+    const data = await response.json();
+    return data.messages || [];
+  } catch (error) {
+    console.error('获取留言错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 获取待播放的留言（预约时间已到但未播放的）
+ */
+export async function getPendingMessages(familyId: string): Promise<ElderlyMessage[]> {
+  try {
+    const response = await fetch(
+      `${API_BASE_URL}/elderly/messages/pending?family_id=${familyId}`
+    );
+
+    if (!response.ok) {
+      throw new Error(`获取待播放留言失败: ${response.statusText}`);
+    }
+
+    const data = await response.json();
+    return data.messages || [];
+  } catch (error) {
+    console.error('获取待播放留言错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 标记留言为已播放
+ */
+export async function markAsPlayed(messageId: number): Promise<boolean> {
+  try {
+    const response = await fetch(
+      `${API_BASE_URL}/elderly/messages/${messageId}/play`,
+      {
+        method: 'POST',
+      }
+    );
+
+    if (!response.ok) {
+      throw new Error(`标记已播放失败: ${response.statusText}`);
+    }
+
+    const data = await response.json();
+    return data.success;
+  } catch (error) {
+    console.error('标记已播放错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 点赞留言
+ */
+export async function likeMessage(messageId: number): Promise<boolean> {
+  try {
+    const response = await fetch(
+      `${API_BASE_URL}/elderly/messages/${messageId}/like`,
+      {
+        method: 'POST',
+      }
+    );
+
+    if (!response.ok) {
+      throw new Error(`点赞留言失败: ${response.statusText}`);
+    }
+
+    const data = await response.json();
+    return data.success;
+  } catch (error) {
+    console.error('点赞留言错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 取消点赞
+ */
+export async function unlikeMessage(messageId: number): Promise<boolean> {
+  try {
+    const response = await fetch(
+      `${API_BASE_URL}/elderly/messages/${messageId}/unlike`,
+      {
+        method: 'POST',
+      }
+    );
+
+    if (!response.ok) {
+      throw new Error(`取消点赞失败: ${response.statusText}`);
+    }
+
+    const data = await response.json();
+    return data.success;
+  } catch (error) {
+    console.error('取消点赞错误:', error);
+    throw error;
+  }
+}
+
+/**
+ * 推送留言到数字人播报（通过5000端口的透传接口）
+ */
+export async function playMessageOnAvatar(message: ElderlyMessage): Promise<void> {
+  try {
+    const text = `来自${message.sender_relation}${message.sender_name}的留言：${message.content}`;
+
+    // 使用与日程相同的透传接口（5000端口）
+    const response = await fetch('http://127.0.0.1:5000/transparent-pass', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        user: 'User',
+        text: text,
+      }),
+    });
+
+    if (!response.ok) {
+      throw new Error(`推送数字人播报失败: ${response.statusText}`);
+    }
+
+    console.log('留言已推送到数字人播报:', text);
+  } catch (error) {
+    console.error('推送数字人播报错误:', error);
+    // 不抛出错误，让流程继续
+  }
+}