Mobile phone screen is the main entrance for people to talk on mobile phones, and it is also a graphical user interface for human-computer interaction. Mainly divided into: common icons, system menus and task bars, background pictures. With the development of mobile phone technology, from black-and-white screen to color screen, mobile phone standby desktop is no longer composed of a single color, but can be replaced by a picture. This kind of wallpaper is called mobile phone wallpaper. Mobile phone wallpaper is the background picture used by the mobile phone screen, which can be adjusted according to the size and resolution.