To solve a lot of trigonometric calculations in the space vector pulse width modulation of the traditional two level inverter, and the harmonic content was higher in output voltage. The SVPWM algorithm based on 60° coordinate system was studied. The method of two level and three level inverter SVPWM in 60° coordinate system was deeply analyzed. Through the MATLAB/Simulink software simulation to verify the adopted method of three level inverter SVPWM based on 60° coordinate system could omit complex trigonometric functions, and reduced the output voltage harmonic content, and made the output voltage waveform more sinusoidal.