Abstract: The paper analyzed magnetic circuit and M-S curve of induction motor with solid rotor, used Ansoft finite element software to simulate dynamic process of variable frequency starting of the motor, and got dynamic data of no-load starting including magnetic field distribution, stator and rotor current, starting torque and so on. It detected performance of the motor under the condition of high frequency and high speed, and demonstrated feasibility of high-speed operation of the induction motor with solid rotor.