Doppler weather radar VAD wind profile (VWP) products are widely used in operational forecast, and the corresponding relations between the wind profile structure characteristics and the thunderstorm, and severe convection have been achieved. Not knowing much about the VAD algorithm of wind profile products which are got by retrieving the radial velocity of Doppler radar, there are still some errors in using VWP and velocity azimuth display (VAD) products. In this paper, based on the basic principle of single Doppler radar wind field retrieval, VWP and VAD products applications in heavy rain forecasting and severe convection nowcasting are reviewed, and operational application errors of VWP and VAD products are emphatically discussed.