Based on VDRAS velocity dealiasing technique,a Doppler velocity dealiasing algorithm is developed for the quality control of CINRAD Doppler radar velocity.The advantage of the algorithm is that it dealiases Doppler velocity at each grid point independently by using reference wind obtained from GRAPES RUC analysis,so it reduces the risk of producing incorrectly dealiased velocity in large areas.The algorithm consists of three steps:horizontal shear preserving,global dealiasing,and local dealiasing.Then,the algorithm was tested with radar data obtained from CINRAD during June 2009.The results showed that the algorithm was effective in dealiasing aliased velocities,removing noises and improving the quality of radar observations.It can serve as an operational algorithm for CINRAD Doppler velocity quality control.