Using the data of seismic accelaration on both soil surface and rock recorded in Shanghai area in Taiwan M_S7.5 earthquake on March 31,2002,the amplification response of ground motion for S wave on soil coverage is discussed.The acceleration time-history curves of S wave on the rock and soil coverage of Shanghai city in possible future M_S8 earthquakes are composed with empirical Green-function,and its influnce on high buildings is estimated preliminarily.The result could be useful to aseismic designing of high building in Shanghai.