During the soil survey at a scale of 1:50,000 Sn-Pb-Cu-Zn anomalies were found on the east flank of the Huishuiwan overturned anticline axis lying at Huishuiwan, Changning County. On the basis of this geochemical survey a program of IPinvestigation at a scale of 1:10,000 was carried out which led to the delineation of some enriched zones of cassiterite sulphides. All these investigations were reported by verification by drilling. Ten boreholes were drilled within the anomalies and six of them intersected commercial ore-beds with a total thickness of 116.2m. The investigated area seems to be quite promising and the verification is continuing.