Find the web version of QQ music and log in to your QQ account.

Return to the main page after logging in, and then click the number on the song list to enter the main page of custom song list.

There will be a setting flag in the lower right corner of the custom song list. Click it to modify it.

There is an Insert Picture function key. Click it to change the cover picture you want.

There are two forms of illustrations, one is this map, and the other is an online map, whichever you choose. Remember to save it after you choose it.

After saving, the cover of the song list will be replaced with the picture you changed.