diff --git a/api_browser.py b/api_browser.py
index 5eacf23..de96912 100755
--- a/api_browser.py
+++ b/api_browser.py
@@ -475,6 +475,7 @@ class APIBrowser:
             # 这样可以避免分页错位问题（标记已读后文章从列表消失导致后续页面上移）
             max_iterations = total_records + 10  # 防止无限循环
             iteration = 0
+            processed_hrefs = set()  # 跟踪已处理的文章，防止重复处理
 
             while articles and iteration < max_iterations:
                 iteration += 1
@@ -483,14 +484,24 @@ class APIBrowser:
                     self.log("[API] 收到停止信号")
                     break
 
+                new_articles_in_page = 0  # 本次迭代中新处理的文章数
+
                 for article in articles:
                     if should_stop_callback and should_stop_callback():
                         break
 
+                    article_href = article['href']
+                    # 跳过已处理的文章
+                    if article_href in processed_hrefs:
+                        continue
+
+                    processed_hrefs.add(article_href)
+                    new_articles_in_page += 1
                     title = article['title'][:30]
+
                     # 获取附件（文章详情页）
                     try:
-                        attachments = self.get_article_attachments(article['href'])
+                        attachments = self.get_article_attachments(article_href)
                         consecutive_failures = 0
                     except Exception as e:
                         skipped_items += 1
@@ -514,6 +525,11 @@ class APIBrowser:
 
                     time.sleep(0.1)
 
+                # 如果当前页没有新文章被处理，说明所有文章都已处理过，退出循环
+                if new_articles_in_page == 0:
+                    self.log(f"[API] 当前页所有文章均已处理，结束循环")
+                    break
+
                 time.sleep(0.2)
 
                 # 重新获取第1页，检查是否还有未处理的内容