Abstract: In this paper, the characteristics of mesoscale structures of wind fields near the stationary front in the late period of a heavy rain in the Jiang-Huai area are analysed based on the wind data of doppler radar located in the Nanjing Institute of meteorology. The results indicate that a cold advection occurs at the near-surface layer, over which lies a warm advection. A north-easterly prevails at lower levels, wind speed decreasing with height and dropping to its minimum at about 2 km. followed by a change in direction to southwest. A verticol wind shear in the horizontal wind field is thus revealed.