Transporting semitrailer for commercial vehicle

The utility model discloses a transporting semitrailer for a commercial vehicle. A front platform, a rear platform and a movable platform used for loading a commercial vehicle are respectively arranged on a chassis of a semitrailer; the front platform is arranged at the front part of the chassis of the semitrailer, and extends obliquely along the direction of a traction vehicle; the rear platform is arranged at the back part of the chassis of the semitrailer, and extends to the tail direction of the semitrailer; the movable platform is arranged between the front platform and the rear platform, a first end is hinged with a cross beam on the chassis of the semitrailer, and a second end extends to one side of the tail of the vehicle; the movable platform is provided with a lifting piece and a movable support rod used for limiting and supporting the movable platform after the movable platform is lifted to the proper position; the movable support rod is provided with a hinging end and a sliding end, the hinging end is hinged with the movable platform, the sliding end slides in a chutes at two sides of the chassis of the semitrailer by a sliding pin, and the movable support rod is positioned by a positioning pin after the sliding end slides to the proper position. The transporting semitrailer for the commercial vehicle has good transporting benefits and is convenient to disassemble vehicles.