In this paper,soil samples obtained by geochemical exploration in Jinkeng region,Suichuan county,jiangxi province,were taken as research object,the geochemical data of metal elements which mainly refer to Au were analyzed.The residual calculation and filter analysis on the geochemical data were carried out,and a Kriging grid was made.Then,the isogram made with the grid and the isogram made by trend surface analysis was compared,the geochemical anomalies areas of Au were delineated.The conclusion is that the zone key exploration zones should be in Shangjinkeng and Xiajinkeng.The study provides powerful technical support for the further determinant of exploration target areas of gold deposit.