A multi-display apparatus including a main frame, a plurality of display modules arranged on the main frame, and a sub-frame coupled to each of the plurality of display modules. The sub-frame includes a rail portion and a hinge portion hingedly-coupled to the main frame. Each of the plurality of display modules includes a display panel, a back cover coupled to a rear surface of the display panel, and a movement guide fixed to the back cover and coupled to the rail portion a sliding manner.