According to three-phase inverter, this paper introduces a space vector pulse width modulation which based on PID neural network. This paper, instead of the traditional neural network, adopts PID neural network modularization design for rapid implementation of SVPWM algorithm. three-layer feedforward PID neural network ,with instruction voltage angle as the input and information, with the aid of a simple timer and logic circuit, produces three phase symmetrical 12 sinusoidal pulse width modulation waveforms. The measured data are used to test the proposed system by a backpropagation algorithm in the MATLAB Neural Network Toolbox. Experimental results show that the method is feasible, and can effectively improve response speed and stability in allSlinearSregions.