In this paper, soil dynamic parameters from Dalian area seismic risk assessment reports are collected. The tested data are divided into 7 kinds of type, i. e. silty clay, muddy silty clay, clay, sanely soil, sand stone, return soil and all-weathered slate. Statistics of the dynamic parameters of soil has been done to obtain the mean values of dynamic shear modulus ratio and damping ratio. Then a typical drilling is selected to establish soil dynamic models in order to investigate the seismic response in different cases. The results show that the statistical values are close to values recommended by Yuan Xiaoming, et al ( 2000) , but have some deviation from standard values in 94 code.