A multi-screen display device forms a large screen by adjacently arranging a plurality of display devices on a frame by engaging a monitor fixing provided on a back surface of a display device with a bracket that is provided on the frame; the monitor fitting that includes a plate-like body that is provided so as to project out from the back surface of the display device and a long hole that is formed in the plate-like body along with a lateral direction of the display device, is arranged at corner portions of the back surface of the display device; and the bracket includes a plate-like body that is perpendicularly provided at a position corresponding to the monitor fixing and a pin member that is provided in a standing manner in a vertical direction on the plate-like body, and is inserted in the long hole of the monitor fixing.