Abstract: This paper measures large quantities of borehole shear wave velocity in Chenggong,the new district of Kunming.After a study about the classification of the soil,the author uses the statistics regression method to analyze the features of site soil shear wave velocity,fitting the relationship between shear wave velocity and soil depth.Results suggest that the soil will be better fitting when the site soil was divided into four categories,and that expressing shear wave velocity and depth relation by a power function is relatively more appropriate.Finally,based on the calculation of equivalent shear wave velocity in Chenggong,the classification of this district is undertaken,and the distribution characteristics of the equivalent shear wave velocity in this district is illustrated.