The invention discloses a separated camera system, a camera thereof, a display device and a display screen, and the separated camera system comprises the display device, an ITO doped with magnetic ions is laid under a cover plate of the display screen; and the camera used for sending shot image data to the display equipment in a wireless manner, and is attracted with the ITO through magnetic forcegenerated by the electrified electromagnetic coil to be fixed on the display screen. The camera can be separated from the display screen, a special position for placing the camera does not need to bereserved on the display screen, and the camera can be fixed on the display screen during working, so that a full-screen display product with a higher screen-to-body ratio is realized.