An electronic device includes a frame and a magnet. The frame includes a main frame body, a stopping piece, a blocking piece, and a hook. The stopping piece and the blocking piece protrude from the main frame body. The hook is located on the blocking piece facing the main frame body. The main frame body, the stopping piece, and the blocking piece cooperatively define a receiving space. The magnet is engaged in the receiving space, and the hook is engaged with the magnet for preventing the magnet from disengaging from the receiving space.