The invention provides an electronic device. The electronic device comprises a display screen, a battery cover, a functional module, a transmission module and an operating part. The battery cover comprises a cover plate and a middle frame which are fixedly connected; the cover plate and the display screen are arranged on two opposite sides of the middle frame; the cover plate, the middle frame andthe display screen form an accommodating space; the accommodating space is used for accommodating the functional module and the transmission module; a first opening is formed in the middle frame; thefirst opening is communicated with the accommodating space; a second opening is also formed in the cover plate; the control part is mounted on the outer surface of the cover plate, extends into the cover plate through the second opening and is matched with the transmission module; and the control piece drives the transmission module to move when moving relative to the cover plate, so that the transmission module drives the functional module to extend out of or retract into the accommodating space through the first opening.