The lifting support platform is a part of the vehicle thermal balance test bed. Its main function is used to carry out the thermal balance test of the vehicle, effectively and reliably connect the dynamometer to the rear end of the vehicle gearbox through the cardan shaft, and effectively and reliably ensure the successful completion of the vehicle thermal balance test. In this paper, the use of UG software to draw the dynamometer parts diagram, and then assembly, finally the assembly drawing is obtained. To put it into production, the physical map is completely obtained.