Abstract: A Meiyu front rainstorm process from June 23, 2017 to June 24, 2017 is analyzed in detail by using CFL-03 boundarylayer wind profiling radar at Lin’an, and the results show that wind profiling radar observations are able to reflect characteristics of mesoscale shear line during the Meiyu front system. The main reason why precipitation is relatively concentrated at the beginning and end of this process is that low-level wind shear happens to move over Lin’an during those periods. Thanks to upper level jet, this rainstorm lasts a long time. Except wind profiles, radar echo intensity is estimated by power spectrum data to analyze the details of developments of the rainstorm, and it is found that precipitation cloud develops vigorously with height over 5 km. Other wind profiling radar products, such as vertical velocity and atmospheric refractive index structure constant (C_n²), change in an identical way comparing with the precipitation. When the precipitation is above 10 mm, vertical velocity is around 7 m/s and log of C_n² is around -11. Consequently, wind profiling radar products can be used to monitor rainstorm operationally.