Abstract: Alarge number data of ground hailstone spectra areanalysed. The average charac-teristics of hailst one spectra and their three types have been obtained. After computing the kinetic energy flux of hailf alls, the Ze-E relations are est a blished, and the correlation conefficient is more than 0.96, the significance level is less than 0.01. This work makes a firm basis to evaluate the effects of artificial hail suppr ession by means of hailpads and radar.