diff --git a/src/common/naming.py b/src/common/naming.py
index 3da1f2f..aba7d89 100644
--- a/src/common/naming.py
+++ b/src/common/naming.py
@@ -5,6 +5,7 @@ import base64,hashlib,os,re
 from src.config import BASE_IMAGES_DIR,CBZ_DIR,OLD_CBZ_DIR
 from src.common.item import MangaInfo,MangaItem
 from typing import Generator, Union, List, Optional
+from datetime import datetime
 
 PREFIX_SCRAMBLE = "scramble="
 
@@ -78,7 +79,20 @@ class FileNaming:
                 filename = filename[0:len(filename)+1-count]
                 break
         return filename
-     
+    
+    @classmethod
+    def file_update_by_date(cls, path, day: int = 7) -> bool:
+        is_update = False
+        if not os.path.exists(path): return False
+        now = datetime.now()
+        str_strftime = '%Y%m%d'
+        now_time = now.strftime(str_strftime)
+        m_time = datetime.fromtimestamp(os.path.getmtime(path))
+        file_time = m_time.strftime(str_strftime)
+        if int(now_time) - int(file_time) > int(day): 
+            is_update = True
+        return is_update
+    
     @classmethod
     def default_filename(cls,url: str, idx: int) -> str:
         """默认文件名生成器：使用数字序号"""
@@ -216,7 +230,8 @@ class FileNaming:
                   yield entry.path if full_path else entry.name
   
       return _scandir(folder_path)
-   
+    
+     
 class NamingStrategy:
     """命名策略集合类"""
     
diff --git a/src/sites/base.py b/src/sites/base.py
index dea173b..311e8fb 100644
--- a/src/sites/base.py
+++ b/src/sites/base.py
@@ -143,17 +143,19 @@ class BaseSite(ABC):
         for cbz_path in list_cbz:
             first_cover_path = str(cbz_path).split(".")[0]+".jpg"
             if len(list_cover) == 1:
-                shutil.copy(list_cover[0].path, first_cover_path)
-                logger.info(f"{list_cover[0].path} ==> {first_cover_path} 已复制")
+                if FileNaming().file_update_by_date(first_cover_path):
+                    shutil.copy(list_cover[0].path, first_cover_path)
+                    logger.info(f"{list_cover[0].path} ==> {first_cover_path} 已复制")
                 continue
             cover_count = 1
             for cover in list_cover:
                 cover_path = cover.path
                 if os.path.exists(first_cover_path): os.remove(first_cover_path)
                 new_cover_path = FileNaming().cover_format_path(str(cbz_path).split(".")[0]+".jpg", count=cover_count)
-                shutil.copy(cover_path, new_cover_path)
-                logger.info(f"{cover_path} ==> {new_cover_path} 已复制")
-                cover_count += 1
+                if  FileNaming().file_update_by_date(new_cover_path):
+                    shutil.copy(cover_path, new_cover_path)
+                    logger.info(f"{cover_path} ==> {new_cover_path} 已复制")
+                    cover_count += 1
         
     async def download_manga(self, manga_url: str) -> AsyncGenerator[Dict, None]:
         """下载整部漫画"""