Compared with the traditional threephase motor, five phase induction motor had many advantages. In order to solve the problem that the five phase motor had a lot of voltage space vector was difficult to control, an optimized algorithm of space vector pulse width modulation (SVPWM) for the five phase induction motor was proposed. Based on the vector space decoupling theory and the theory of carrier unity, the SVPWM algorithm based on the maximum vector was used to optimize the algorithm by considering the factors such as voltage ripple and switching loss. The mathematical model of the system was established, and the simulation results were verified. The simulation results showed that the optimized algorithm meets the requirements of the motor control, compared with the traditional SVPWM algorithm and simulation, the harmonic distortion rate was reduced and the switching loss was reduced by about 20%.