Abstract: Six-phase induction motor model was established in Magnet environment and driven by trapezoidal-wave phase current. Analysis of relationship between torque current and rotor current indicated that trapezoidal-wave phase current achieved separated control of excitation current and torque current. 2D transient magnetic field simulation was done and the distribution of magnetic equipotential, magnetic induction waveform, and relationship between steady-state electromagnetic torque and torque current were analyzed. 2D dynamic simulation of start performance of the motor was done by adding a Motion unit. Simulation results showed that the electromagnetic torque responses quickly without obvious torque ripple and speed ripple, which indicates the method of using trapezoidal-wave phase current to drive motor is feasible, and simulation parameters is reasonable, which provides a reference for eventual optimization of motor performance.