The utility model discloses a lifting truck for transporting finished cars which utilizes a pneumatic spring lifter as a lifting linkage, achieving the aim of controlling the height of the whole truck by controlling the elastic stretch of the pneumatic spring. Under normal steering, the carriage is adjusted to the top height to avoid any scratch or bump on the chassis; when there is a height limit, the height of the carriage is lowered to ensure that the truck can pass a bridge or a tunnel. The utility model is composed of a primary beam, a shaft axle, a pneumatic spring lifter and a pneumatic spring, the shaft axle is positioned on the primary beam, the pneumatic spring lifter is arranged between the shaft axle and the joist of the carriage, the two ends of the pneumatic spring are cotter jointed with the shaft axle and the joist, a wheel is positioned on the shaft axle, an inserting plate is inserted into a slot at the lower part of one side of the carriage. The utility model meets the requirement of height to load and transport all types of present microbuses and mini vans as there is an infinite change of distance of from 0.25m to 0.4m between the chassis and the surface of earth.