diff --git a/pjcloud-integrated/pjcloud-integrated-biz/API-INTEGRATION-GUIDE.md b/pjcloud-integrated/pjcloud-integrated-biz/API-INTEGRATION-GUIDE.md
index 002fb9072..635bd9cd9 100644
--- a/pjcloud-integrated/pjcloud-integrated-biz/API-INTEGRATION-GUIDE.md
+++ b/pjcloud-integrated/pjcloud-integrated-biz/API-INTEGRATION-GUIDE.md
@@ -46,11 +46,13 @@ X-App-Secret: 550e8400-e29b-41d4-a716-446655440001
   "msg": "操作成功",
   "data": [
     {
+      "id": 1,
       "title": "系统维护通知",
       "createTime": "2025-01-27 10:00:00",
       "description": "系统将于今晚进行维护升级"
     },
     {
+      "id": 2,
       "title": "新功能上线",
       "createTime": "2025-01-26 15:30:00",
       "description": "新增用户管理功能模块"
@@ -68,6 +70,16 @@ X-App-Secret: 550e8400-e29b-41d4-a716-446655440001
 }
 ```
 
+## ⏰ 过期时间功能
+
+系统支持为公告设置过期时间，到期后公告将自动下架不再显示：
+
+- **过期时间字段**: `expireTime`
+- **自动处理**: 每天凌晨2点自动检查并处理过期公告
+- **处理逻辑**: 过期公告状态自动更新为"已下架"
+- **查询过滤**: 所有查询接口自动过滤已过期公告
+- **灵活设置**: 支持设置具体过期时间，也支持永不过期（不设置过期时间）
+
 ## 💻 集成示例
 
 ### JavaScript 调用示例
diff --git a/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/controller/NoticeController.java b/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/controller/NoticeController.java
index 8c5ed997a..880e68e20 100644
--- a/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/controller/NoticeController.java
+++ b/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/controller/NoticeController.java
@@ -27,6 +27,7 @@ import com.bsd.pjcloud.integrated.config.ExternalAppConfig;
 
 import java.util.List;
 import java.util.Objects;
+import java.time.LocalDateTime;
 
 /**
  * 通知公告
@@ -56,6 +57,11 @@ public class NoticeController {
     public R getNoticePage(@ParameterObject Page page, @ParameterObject NoticeEntity notice) {
         LambdaQueryWrapper<NoticeEntity> wrapper = Wrappers.lambdaQuery();
 		wrapper.like(StrUtil.isNotBlank(notice.getTitle()),NoticeEntity::getTitle,notice.getTitle());
+        // 过滤已过期和已下架的公告
+//        wrapper.and(w -> w.eq(NoticeEntity::getStatus, "0")
+//                .and(inner -> inner.isNull(NoticeEntity::getExpireTime)
+//                        .or()
+//                        .gt(NoticeEntity::getExpireTime, LocalDateTime.now())));
         return R.ok(noticeService.pageScope(page, wrapper));
     }
 
@@ -138,6 +144,10 @@ public class NoticeController {
         LambdaQueryWrapper<NoticeEntity> wrapper = Wrappers.lambdaQuery();
         wrapper.eq(NoticeEntity::getStatus, "0"); // 只查已发布
         wrapper.like(StrUtil.isNotBlank(title), NoticeEntity::getTitle, title);
+        // 过滤已过期的公告
+        wrapper.and(w -> w.isNull(NoticeEntity::getExpireTime)
+                .or()
+                .gt(NoticeEntity::getExpireTime, LocalDateTime.now()));
         wrapper.orderByDesc(NoticeEntity::getIsTop, NoticeEntity::getCreateTime); // 置顶优先，时间倒序
         return R.ok(noticeService.page(page, wrapper));
     }
@@ -154,6 +164,10 @@ public class NoticeController {
         if (notice == null || !"0".equals(notice.getStatus())) {
             return R.failed("公告不存在或已下架");
         }
+        // 检查是否已过期
+        if (notice.getExpireTime() != null && notice.getExpireTime().isBefore(LocalDateTime.now())) {
+            return R.failed("公告已过期");
+        }
         return R.ok(notice);
     }
 
@@ -169,6 +183,10 @@ public class NoticeController {
         if (notice == null || !"0".equals(notice.getStatus())) {
             return R.failed("公告不存在或已下架");
         }
+        // 检查是否已过期
+        if (notice.getExpireTime() != null && notice.getExpireTime().isBefore(LocalDateTime.now())) {
+            return R.failed("公告已过期");
+        }
         notice.setViewCount((notice.getViewCount() == null ? 0 : notice.getViewCount()) + 1);
         noticeService.updateById(notice);
         return R.ok();
@@ -183,6 +201,10 @@ public class NoticeController {
     public R<List<NoticeScreenVo>> getScreenNoticeList() {
         LambdaQueryWrapper<NoticeEntity> wrapper = Wrappers.lambdaQuery();
         wrapper.eq(NoticeEntity::getStatus, "0");
+        // 过滤已过期的公告
+        wrapper.and(w -> w.isNull(NoticeEntity::getExpireTime)
+                .or()
+                .gt(NoticeEntity::getExpireTime, LocalDateTime.now()));
         wrapper.orderByDesc(NoticeEntity::getCreateTime);
         wrapper.last("limit 10");
         List<NoticeEntity> list = noticeService.list(wrapper);
@@ -224,6 +246,10 @@ public class NoticeController {
         
         LambdaQueryWrapper<NoticeEntity> wrapper = Wrappers.lambdaQuery();
         wrapper.eq(NoticeEntity::getStatus, "0"); // 只查询已发布的公告
+        // 过滤已过期的公告
+        wrapper.and(w -> w.isNull(NoticeEntity::getExpireTime)
+                .or()
+                .gt(NoticeEntity::getExpireTime, LocalDateTime.now()));
         wrapper.orderByDesc(NoticeEntity::getIsTop, NoticeEntity::getCreateTime); // 置顶优先，时间倒序
         wrapper.last("limit " + limit);
         
diff --git a/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/entity/NoticeEntity.java b/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/entity/NoticeEntity.java
index 9e2992449..ca6f36114 100644
--- a/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/entity/NoticeEntity.java
+++ b/pjcloud-integrated/pjcloud-integrated-biz/src/main/java/com/bsd/pjcloud/integrated/entity/NoticeEntity.java
@@ -71,6 +71,12 @@ public class NoticeEntity extends Model<NoticeEntity> {
     @Schema(description="浏览次数")
     private Integer viewCount;
 
+	/**
+	* 过期时间
+	*/
+    @Schema(description="过期时间，到期后公告自动下架")
+    private LocalDateTime expireTime;
+
 	/**
 	* 创建者
 	*/