A multi-panel display device includes: a first display device and a second display device each including a display panel, a back cover configured to cover a rear surface of the display panel, and a back cover housing configured to cover a rear surface of the back cover, a first cabinet on which the first and second display devices are supported and attached, and a fine adjustment device positioned on a rear surface of each of the first and second display devices exposed to a rear surface of the first cabinet, wherein the fine adjustment device is connected to the back cover of each of the first and second display devices and exposed to the outside through an adjustment device hole provided in the back cover housing, and positions of the back cover and the display panel are finely adjusted by the fine adjustment device.