Abstract: This paper uses the simulation tool SIMULINK under Matlab to conduct simulation research on vector control of asynchronous motors. A simulation model of the motor is constructed by transforming the vector control equations of the asynchronous motor, and a voltage converter is constructed by transforming the voltage equations of the asynchronous motor. Furthermore, a voltage-type asynchronous motor speed control system model is constructed and simulated. Simulation results and explanations are given. Keywords: Vector control, voltage conversion, SIMULINK 1 Introduction Simulation has always been a very important tool in system design, playing a guiding role. With the widespread application of MATLAB and SIMULINK, researchers have very convenient tools for design simulation. Servo control technology of AC motors is a current research focus, and simulation research on its control system is of great significance. This paper uses the SIMULINK tool in MATLAB to simulate the voltage-type servo control system of an AC motor and analyzes the simulation results. For details, please click: Voltage Conversion of Asynchronous Motor Vector Control System and its Simulation under SIMULINK