Virtual space vector pulse width modulation (VSVPWM) of three-level inverter is widely used. But due to the three-level inverter control, narrow pulses are generated in certain region, which results in unnecessary switching loss and heat accumulation. The narrow pulse distribution of VSVPWM is analyzed, and the narrow pulses are suppressed by the injection of the differential mode voltage and the common mode voltage with the neutral-point voltage controlled within a small range. Simulation and experiment prove that the proposed method can suppress most of the narrow pulses without causing distortion of the output waveform and increase of harmonics.