diff --git a/src/common/utils.py b/src/common/utils.py
index 2022b9e..26d7202 100644
--- a/src/common/utils.py
+++ b/src/common/utils.py
@@ -15,7 +15,7 @@ from zipfile import ZipFile, ZIP_DEFLATED
 from src.common.logging import setup_logging
 import logging
 from tempfile import NamedTemporaryFile
-
+from datetime import datetime
 
 logger = setup_logging(__name__)
 
@@ -435,7 +435,29 @@ class CBZUtils:
     #    update_zip_file("data.zip", {
     #        "config.json": new_config  # 字节数据
     #    })
-       
+    def _clean_old_cbz(self, cbz_path):
+        m_time = datetime.fromtimestamp(os.path.getmtime(cbz_path))
+        str_strftime = '%Y%m%d'
+        zip_time = m_time.strftime(str_strftime)
+    
+        with ZipFile(cbz_path, 'r') as zip_ref:
+            old_img = 0
+            for file_info in zip_ref.infolist():
+                # 获取日期时间信息，格式为 (year, month, day, hour, minute, second)
+                date_time = file_info.date_time
+                # 将日期时间元组转换为datetime对象
+                dt = datetime(*date_time)
+                # 格式化输出日期时间，例如：YYYY-MM-DD HH:MM:SS
+                file_date_time = dt.strftime(str_strftime)
+                # 一周内的图片跳过
+                if int(zip_time) - int(file_date_time) > 7:
+                    #print(f"Clear Filename: {file_info.filename}, zip: {cbz_path}")
+                    old_img += 1
+            
+            if old_img > 0:
+                #os.remove(cbz_path)
+                print(f"remove cbz {cbz_path}") 
+                
 class ImageUtils:
    
     @classmethod
diff --git a/src/sites/base.py b/src/sites/base.py
index db08b8c..dea173b 100644
--- a/src/sites/base.py
+++ b/src/sites/base.py
@@ -6,7 +6,7 @@ import asyncio
 import logging
 from src.config import DEFAULT_HEADERS, TIMEOUT, RETRIES, PROXY_URL, RETRY_PROXY
 from lxml import etree
-from src.common.utils import Cache  # 导入缓存类
+from src.common.utils import Cache, CBZUtils  # 导入缓存类
 from src.common.item import Chapter, MangaItem, MangaInfo,CoverItem
 from src.common.exceptions import SiteError, NetworkError, ParseError
 from src.common.logging import setup_logging
@@ -98,9 +98,11 @@ class BaseSite(ABC):
                 if os.path.exists(old_cbz_path):
                     logger.info(f"{chapter.title} Old章节存在")
                     if not os.path.exists(os.path.dirname(cbz_path)): os.makedirs(cbz_path)
-                    shutil.copy(old_cbz_path, cbz_path)
-                    logger.info(f"{old_cbz_path} ==> {cbz_path} 已复制")
-                    chapter.status = "downloaded"
+                    CBZUtils()._clean_old_cbz(old_cbz_path)
+                    if os.path.exists(old_cbz_path):
+                        shutil.copy(old_cbz_path, cbz_path)
+                        logger.info(f"{old_cbz_path} ==> {cbz_path} 已复制")
+                        chapter.status = "downloaded"
                 down_chapter.append(chapter)
             return down_chapter
         except Exception as e: