The traditional SVPWM algorithm, there are a lot of trigonometric functions and beg root operation, go against digital signal processor, therefore the real-time operation is proposed based on SPWM algorithm, the SVPWM algorithm as SPWM that find out the implementing SVPWM modulation of the function, using hidden with carrier modulation wave SPWM compared in the rules in the stationary coordinate system, sampling ideas directly look-up table get each corresponding reference voltage vector modulation wave function value three-phase, then get each phase voltage in a PWM cycle , be helpful for digital realization. Through matlab simulation verify the waveform implied modulation function.