An electronic device includes a body, a cover coupled to the body, and a sliding mechanism. The sliding mechanism includes a rotating component, a first locking component, and a second locking component. When the second locking component moves to a locked position, the second locking component engages with the first locking component to lock the cover to the body. When the second locking component moves to an unlocked position, the first locking component disengages from the second locking component, to allow the rotating component to rotatably drive the cover to be opened.