Abstract: Currently, there are many key technologies for pure electric vehicles that are still in the experimental and promotional stages, especially in the optimization and improvement of the transmission system structure. How to make the motor parameters reasonably match the traditional mechanical structure parameters is a hot topic in electric vehicle technology research. In this paper, the vehicle model is established based on MATLAB software, and the performance analysis and transmission system matching simulation are conducted to provide a theoretical basis for the optimization and upgrading of the transmission system of pure electric special purpose vehicles.