diff --git a/server/migrate_alerts.py b/server/migrate_alerts.py
new file mode 100644
index 0000000..f3f1fab
--- /dev/null
+++ b/server/migrate_alerts.py
@@ -0,0 +1,98 @@
+"""
+数据库迁移脚本 - 升级 family_alerts 表结构
+"""
+import sqlite3
+import os
+
+DB_PATH = os.path.join(os.path.dirname(__file__), 'kinecho.db')
+
+def migrate():
+    conn = sqlite3.connect(DB_PATH)
+    cursor = conn.cursor()
+
+    try:
+        # 检查表是否存在
+        cursor.execute('''
+            SELECT name FROM sqlite_master
+            WHERE type='table' AND name='family_alerts'
+        ''')
+
+        if cursor.fetchone():
+            print("表 family_alerts 已存在，开始迁移...")
+
+            # 重命名旧表
+            cursor.execute('ALTER TABLE family_alerts RENAME TO family_alerts_old')
+
+            # 创建新表
+            cursor.execute('''
+                CREATE TABLE family_alerts (
+                    id INTEGER PRIMARY KEY AUTOINCREMENT,
+                    family_id TEXT NOT NULL,
+                    elderly_id INTEGER,
+                    alert_type TEXT NOT NULL,
+                    level TEXT NOT NULL,
+                    title TEXT,
+                    message TEXT NOT NULL,
+                    metadata TEXT,
+                    source TEXT DEFAULT 'elderly',
+                    handled INTEGER DEFAULT 0,
+                    handled_at TIMESTAMP,
+                    handled_by INTEGER,
+                    reply_message TEXT,
+                    read INTEGER DEFAULT 0,
+                    read_at TIMESTAMP,
+                    is_active INTEGER DEFAULT 1,
+                    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                    FOREIGN KEY (elderly_id) REFERENCES users(id),
+                    FOREIGN KEY (handled_by) REFERENCES users(id)
+                )
+            ''')
+
+            # 复制旧数据
+            cursor.execute('''
+                INSERT INTO family_alerts
+                (id, family_id, alert_type, level, message, handled, handled_at, created_at, updated_at)
+                SELECT id, family_id, alert_type, level, message, handled, handled_at, created_at, updated_at
+                FROM family_alerts_old
+            ''')
+
+            # 删除旧表
+            cursor.execute('DROP TABLE family_alerts_old')
+
+            print("数据迁移完成！")
+        else:
+            print("表不存在，将在初始化时创建")
+
+        # 创建索引
+        cursor.execute('''
+            CREATE INDEX IF NOT EXISTS idx_family_alerts_family_id
+            ON family_alerts(family_id)
+        ''')
+
+        cursor.execute('''
+            CREATE INDEX IF NOT EXISTS idx_family_alerts_created_at
+            ON family_alerts(created_at DESC)
+        ''')
+
+        cursor.execute('''
+            CREATE INDEX IF NOT EXISTS idx_family_alerts_handled
+            ON family_alerts(handled, created_at DESC)
+        ''')
+
+        print("索引创建完成！")
+
+        conn.commit()
+        print("\n✅ 迁移成功！")
+
+    except Exception as e:
+        conn.rollback()
+        print(f"\n❌ 迁移失败: {e}")
+        import traceback
+        traceback.print_exc()
+
+    finally:
+        conn.close()
+
+if __name__ == '__main__':
+    migrate()