The invention discloses an X-band rainfall radar radial disturbance identification and elimination method. The method comprises: carrying out tangential search on the radial scanning line to perform the identification of the radial disturbance to the original rainfall intensity data, and using the interpolation method for data filling to the areas with radial interference. Experiments show that this method can identify and eliminate the abnormal precipitation belt and "burr" well, and can also fill data for the abnormal precipitation belt well, without influencing the normal precipitation area, therefore, improving the precision for precipitation estimation in a rainfall radar area.