Abstract: The invention is a vehicle-mounted cargo transport apparatus and a method for mounting the cargo transport apparatus on a vehicle is such a way that increases both the loading capacity and stability of the cargo transport apparatus. At a minimum, the cargo transport apparatus comprises a lifting device and at least one load-bearing member. The lifting device is connected to the vehicle and has a cargo holding area, such as a platform, connected to the lifting device for loading cargo. The cargo holding area has at least two positions: a traveling position and a loading position. Cargo is loaded onto the cargo holding area in the loading position and then raised to a vertical position above the traveling position. At least one load beam, preferably two load beams, are then connected to the vehicle in a location where the load-supporting member can support the lifting device in the traveling position.