Abstract: The characteristics of the severe convective weather in Sanming were analyzed by using wind profile radar of Yongan. The results show that there was an effect of shortwave between 1500-5000m before the severe convective broke out on horizontal wind field, and the wind direction had revolved with time under 500m. It showed that the weak wave had been moving eastward on middle and low levels, and there was a little-scale rotation circulation on the surface layer. The maximum wind speed reached more than 25m/s during the hail fall, and the direction of wind was mostly west and southwest. The maximum wind speed reached more than 15m/s during the short-time heavy rainfall. It appeared that when the wind speed reached more than 20m/s between 0-1500m, the hail fall often occurred. The southwest jet stream of more than 20m/s often appeared under 6000m and even under 4000m. Meanwhile, the jet stream of more than 12m/s often appeared under 1600m and the jet stream of more than 12m/s often appeared under 2000m during a heavy rainfall. The vertical velocity more than 4m/s often appeared during a rainfall, and the vertical velocity of more than 4m/s generally reached 3600m. Additionally, if the vertical velocity was faster, the height was higher. The maximum vertical velocity of a hail fall was not obviously different from a short-time heavy rainfall. However, the area of the maximum positive velocity during a hail fall was larger than that of the short-time heavy rainfall.