diff --git a/src/migrations/001_add_repeat_interval.sql b/src/migrations/001_add_repeat_interval.sql
new file mode 100644
index 0000000..aecc7ad
--- /dev/null
+++ b/src/migrations/001_add_repeat_interval.sql
@@ -0,0 +1,15 @@
+-- 迁移脚本：添加重复提醒相关字段
+-- 执行时间：2026-02-03
+-- 说明：为支持每天/每周重复提醒，添加 repeat_interval 字段
+
+-- 添加 repeat_interval 字段（如果不存在）
+-- SQLite 不支持 IF NOT EXISTS 语法，需要检查列是否存在
+-- 这里使用 ALTER TABLE 添加列
+
+ALTER TABLE events ADD COLUMN repeat_interval INTEGER DEFAULT NULL;
+
+-- 更新现有数据：将 'none' 以外的旧 repeat_type 保持不变
+-- 注意：此迁移假设现有数据只有 'yearly', 'monthly', 'none' 三种值
+
+-- 验证迁移
+-- SELECT id, repeat_type, repeat_interval FROM events WHERE type = 'reminder';
diff --git a/src/migrations/002_add_next_reminder_date.sql b/src/migrations/002_add_next_reminder_date.sql
new file mode 100644
index 0000000..f9a6ab7
--- /dev/null
+++ b/src/migrations/002_add_next_reminder_date.sql
@@ -0,0 +1,9 @@
+-- 迁移脚本：添加下一次提醒日期字段
+-- 执行时间：2026-02-03
+-- 说明：支持重复提醒的双时间机制（当前提醒时间 + 下一次提醒时间）
+
+-- 添加 next_reminder_date 字段
+ALTER TABLE events ADD COLUMN next_reminder_date TEXT DEFAULT NULL;
+
+-- 验证迁移
+-- SELECT id, title, date, repeat_type, next_reminder_date FROM events WHERE type = 'reminder';
diff --git a/src/routes/events.ts b/src/routes/events.ts
index f72c05b..f9119c4 100644
--- a/src/routes/events.ts
+++ b/src/routes/events.ts
@@ -7,13 +7,16 @@ import { asyncHandler } from '../middleware/errorHandler';
 const router = Router();
 
 // Validation schemas - date can be empty string for reminders
+// repeat_type: 'daily'每天, 'weekly'每周, 'monthly'每月, 'yearly'每年, 'none'不重复
 const createEventSchema = z.object({
   type: z.enum(['anniversary', 'reminder']),
   title: z.string().min(1, 'Title is required').max(200),
   content: z.string().optional(),
   date: z.string().optional(), // Can be empty for reminders
   is_lunar: z.boolean().default(false),
-  repeat_type: z.enum(['yearly', 'monthly', 'none']).default('none'),
+  repeat_type: z.enum(['daily', 'weekly', 'monthly', 'yearly', 'none']).default('none'),
+  repeat_interval: z.number().int().positive().optional().nullable(), // 自定义间隔（周数）
+  next_reminder_date: z.string().optional().nullable(), // 下一次提醒日期
   is_holiday: z.boolean().default(false),
   is_completed: z.boolean().default(false),
 });
@@ -33,6 +36,8 @@ interface EventRow {
   date: string;
   is_lunar: number;
   repeat_type: string;
+  repeat_interval: number | null;      // 周数间隔（仅 weekly 类型使用）
+  next_reminder_date: string | null;   // 下一次提醒日期
   is_holiday: number;
   is_completed: number;
   created_at: string;
@@ -49,6 +54,8 @@ function formatEvent(event: EventRow) {
     date: event.date,
     is_lunar: Boolean(event.is_lunar),
     repeat_type: event.repeat_type,
+    repeat_interval: event.repeat_interval,
+    next_reminder_date: event.next_reminder_date,
     is_holiday: Boolean(event.is_holiday),
     is_completed: Boolean(event.is_completed),
     created_at: event.created_at,
@@ -107,11 +114,14 @@ router.post(
     // Handle empty date - store as null for reminders without specific time
     // 直接存储前端发送的原始日期字符串，不做 toISOString 转换（避免时区问题）
     const dateValue = data.date || null;
+    const repeatInterval = data.repeat_type === 'weekly' ? (data.repeat_interval || 1) : null;
+    // 如果前端传了 next_reminder_date 就使用它，否则根据 repeat_type 计算
+    const nextReminderDate = data.next_reminder_date || null;
 
     await db.execute({
-      sql: `INSERT INTO events (id, user_id, type, title, content, date, is_lunar, repeat_type, is_holiday, is_completed, created_at, updated_at)
-            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, 0, datetime('now'), datetime('now'))`,
-      args: [eventId, req.user!.userId, data.type, data.title, data.content || null, dateValue, data.is_lunar ? 1 : 0, data.repeat_type, data.is_holiday ? 1 : 0],
+      sql: `INSERT INTO events (id, user_id, type, title, content, date, is_lunar, repeat_type, repeat_interval, next_reminder_date, is_holiday, is_completed, created_at, updated_at)
+            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 0, datetime('now'), datetime('now'))`,
+      args: [eventId, req.user!.userId, data.type, data.title, data.content || null, dateValue, data.is_lunar ? 1 : 0, data.repeat_type, repeatInterval, nextReminderDate, data.is_holiday ? 1 : 0],
     });
 
     const result = await db.execute({
@@ -168,6 +178,18 @@ router.put(
     if (data.repeat_type) {
       updates.push('repeat_type = ?');
       args.push(data.repeat_type);
+      // 如果设置为 weekly 重复，设置默认间隔
+      if (data.repeat_type === 'weekly') {
+        updates.push('repeat_interval = ?');
+        args.push(data.repeat_interval || 1);
+      } else {
+        updates.push('repeat_interval = NULL');
+      }
+    }
+    // 处理 next_reminder_date 更新
+    if (data.next_reminder_date !== undefined) {
+      updates.push('next_reminder_date = ?');
+      args.push(data.next_reminder_date);
     }
     if (data.is_holiday !== undefined) {
       updates.push('is_holiday = ?');