Abstract: A main lead ore body in Lancang scatters in middle to high carboniferous (C 2+3) limestone,and low carboniferous (C1) in the Yiliu volcanic contacted zone.The electronic parameters in mine lot indicates that there is a distinct difference between carboniferous (C 2+3) and lower carboniferous (C1).It provides the electrical premise for the DC resistivity sounding in middle to high carboniferous (C 2+3),and low carboniferous (C1) of Yiliu volcanic zone.Therefore,the paper introduces principles and approaches of DC resistivity sounding which carries on in this mine lot.It predictes exist of two mine targets in the area through the detection and research,which has achieved good result.