The invention belongs to the field of mahjong machines, and in particular relates to a novel tile-drawing preventing roller coaster type full-automatic mahjong machine. The full-automatic mahjong machine comprises a large iron plate, a tile bearing main bracket and a panel, wherein the large iron plate, the tile bearing main bracket and the panel are mutually connected via small vertical pillars;a conveying assembly is arranged on the large iron plate; and a tile pushing and lifting mechanism, a tile dividing system and a tile lifting system, which are sequentially connected, are arranged inthe large iron plate, the tile bearing main bracket and the panel. According to the novel tile-drawing preventing roller coaster type full-automatic mahjong machine provided by the invention, the independence of single-layer tile and double-layer tile mechanisms is protected to the greatest extent; and the full-automatic mahjong machine, when used, can avoid mutual influence, interference and damage, so that the full-automatic mahjong machine has the characteristics of being safer and more stable to use, low in tile pulling resistance, lower in tile pulling sound, good in tile type compatibility, convenient for maintenance and the like.