diff --git a/ncm/config.py b/ncm/config.py
index 8fedd15..cf1d293 100644
--- a/ncm/config.py
+++ b/ncm/config.py
@@ -15,7 +15,8 @@ _CONFIG_FILE_PATH = os.path.join(_CONFIG_MAIN_PATH, 'ncm.ini')
 _DEFAULT_DOWNLOAD_PATH = os.path.join(_CONFIG_MAIN_PATH, 'download')
 
 # Global config value
-DOWNLOAD_HOT_MAX = 50
+DOWNLOAD_HOT_MAX_DEFAULT = 50
+DOWNLOAD_HOT_MAX = DOWNLOAD_HOT_MAX_DEFAULT
 DOWNLOAD_DIR = ''
 SONG_NAME_TYPE = 1
 SONG_FOLDER_TYPE = 1
@@ -42,11 +43,40 @@ def load_config():
 def init_config_file():
     default_config = '''\
     [settings]
-    {key_max} = 50
+    
+    #--------------------------------------
+    # Max download hot song numbers
+    # 
+    # Range: 0 < hot_max < 50
+    #--------------------------------------
+    {key_max} = {value_max}
+    
+    #--------------------------------------
+    # Song download directory
+    #--------------------------------------
     {key_dir} = {value_dir}
+    
+    #--------------------------------------
+    # Song name type, maybe one of the 
+    # following values:
+    #
+    # 1: song_name.mp3
+    # 2: artist_name - song_name.mp3
+    # 3: song_name - artist_name.mp3
+    #--------------------------------------
     {key_name_type} = 1
+    
+    #--------------------------------------
+    # Song folder type, maybe one of the 
+    # following values:
+    #
+    # 1: download.dir
+    # 2: download.dir/artist_name
+    # 3: download.dir/artist_name/album_name
+    #--------------------------------------
     {key_folder_type} = 1
     '''.format(key_max=_CONFIG_KEY_DOWNLOAD_HOT_MAX,
+               value_max=DOWNLOAD_HOT_MAX_DEFAULT,
                key_dir=_CONFIG_KEY_DOWNLOAD_DIR,
                value_dir=_DEFAULT_DOWNLOAD_PATH,
                key_name_type=_CONFIG_KEY_SONG_NAME_TYPE,
diff --git a/ncm/start.py b/ncm/start.py
index 97dd8a6..a5aed8d 100644
--- a/ncm/start.py
+++ b/ncm/start.py
@@ -16,7 +16,8 @@ def download_hot_songs(artist_id):
     songs = api.get_hot_songs(artist_id)
     folder_name = songs[0]['artists'][0]['name'] + ' - hot50'
     folder_path = os.path.join(config.DOWNLOAD_DIR, folder_name)
-    for i, song in enumerate(songs):
+    download_count = config.DOWNLOAD_HOT_MAX if (0 < config.DOWNLOAD_HOT_MAX < 50) else config.DOWNLOAD_HOT_MAX_DEFAULT
+    for i, song in zip(range(download_count), songs):
         print(str(i + 1) + ' song name:' + song['name'])
         download_song_by_song(song, folder_path, False)