diff --git a/biliarchiver_archive_bvids.py b/biliarchiver_archive_bvids.py
index 598d00c..59969c3 100644
--- a/biliarchiver_archive_bvids.py
+++ b/biliarchiver_archive_bvids.py
@@ -10,15 +10,34 @@ from httpx import Client
 from rich.traceback import install
 install()
 
+from _biliarchiver_archive_bvid import BILIBILI_IDENTIFIER_PERFIX
 
 def parse_args():
     parser = argparse.ArgumentParser()
     parser.add_argument('--sess-data', type=str, default=get_sess_data(),
         help='cookie SESSDATA。不指定则会从 ~/.sess_data.txt 读取，指定则直接使用提供的字符串')
     parser.add_argument('--bvids', type=str, help='bvids 列表的文件路径', required=True)
+    parser.add_argument('--skip-exist', action='store_true',
+                        help='跳过 IA 上已存在的 item （只检查 p1 是否存在）')
     args = parser.parse_args()
     return args
 
+def check_ia_item_exist(client: Client, identifier: str) -> bool:
+    params = {
+        'identifier': identifier,
+        'output': 'json',
+    }
+    r = client.get('https://archive.org/services/check_identifier.php' ,params=params)
+    r.raise_for_status()
+    r_json = r.json()
+    assert r_json['type'] =='success'
+    if r_json['code'] == 'available':
+        return False
+    elif r_json['code'] == 'not_available':
+        return True
+    else:
+        raise ValueError(f'Unexpected code: {r_json["code"]}')
+
 def main():
     args = parse_args()
 
@@ -33,16 +52,24 @@ def main():
 
     d = DownloaderBilibili(video_concurrency=tasks_limit, part_concurrency=1, hierarchy=True, sess_data=args.sess_data,
     )
-
-    logined = is_login(Client(cookies=d.client.cookies, headers=d.client.headers))
+    client = Client(cookies=d.client.cookies, headers=d.client.headers)
+    logined = is_login(client)
     if not logined:
         return
 
     d.progress.start()
     for bvid in bvids:
+        if args.skip_exist:
+            identifier = f'{BILIBILI_IDENTIFIER_PERFIX}-{bvid}_p1'
+            if check_ia_item_exist(client, identifier):
+                print(f'IA 上已存在 {identifier} ，跳过')
+                continue
+
         while len(asyncio.all_tasks(loop)) > tasks_limit:
             loop.run_until_complete(asyncio.sleep(0.01))
+
         print(f'=== {bvid} ===')
+
         task = loop.create_task(archive_bvid(d, bvid, logined=logined))
     
     while len(asyncio.all_tasks(loop)) > 0: