Based on April～August surface weather observation data from 1982 to 1997 in Henan province and corresponding radar echo data,the characters of weather and rader echo parameters in 40 times regional hail process (neighboring stations≥3) were researched statistically.Some forecast criterions and image features of Doppler radar intensity field and velocity field with better correlation were obtained.These achievements provide scientific basis for making short term forecast,radar monitoring and hail suppression operation.