The invention discloses a folding mobile phone shell comprising a display screen, wherein an upper mobile phone shell is arranged on an upper back surface of the display screen, a lower mobile phone shell is arranged on a lower back surface of the display screen, a first axle hole is formed in a tail end of the upper mobile phone shell, a first rotating shaft is arranged on a starting end of the lower mobile phone shell, a second axle hole is formed in the tail end of the lower mobile phone shell, a groove is formed above the second axle hole, a second rotating shaft is connected in the secondaxle hole, an elastic fulcrum bar is fixedly connected to the second rotating shaft, and an adsorption ring is connected to the end of the elastic fulcrum bar. The folding mobile phone shell has a simple structure, is convenient and practical, and can integrate the adsorption ring and the mobile phone shell, the mobile phone can be conveniently placed at different angles, moreover, the mobile phone is firmly placed and is more convenient for people to watch videos on the mobile phone, the folding mobile phone shell can be used on any occasion, thereby further improving the versatility of themobile phone, making the mobile phone be more stylish, and thus the folding mobile phone shell can be used universally.