The invention provides a tiled display device in one embodiment and relates to the tiled display field. The tiled display device has multiple display functions and is capable of meeting multiple demands of users by realizing different display effects by changing tiling modes. The tiled display device comprises a first display panel and a second display panel which are arranged in a first direction, a first rotating plate on which the first display panel is fitted, a second rotating plate on which the second display panel is fitted, a first sliding plate located on one side, far away from the first display panel, of the first rotating plate, a second sliding plate located on one side, far away from the second display panel, of the second rotating plate, and bottom supporting plates located at the bottoms of the first sliding plate and the second sliding plate, wherein the first display panel and the second display panel both are rectangular display panels of the same dimension. The invention is used for manufacturing the tiled display device.