College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China

In order to study the geophysical characteristics of Huaniushan lead-zinc deposit and find out the favorable position of lead-zinc mineralization in Huaniushan area，the authors use 3D L-BFGS inversion method to carry out calculation inversion of the CSAMT data.Combining with the previous TDIP method measurement results，the underground 3D electrical structure in the study area is well proved by the controllable source technology，the NW-extending Huaheitan-Shuangfengshan ore-controlling fault is successfully identified，and the prospective area of lead-zinc mineralization near the metallogenic belt is delineated.The resistivity model results show that the lead-zinc deposit in the study area is located near the contact zone between phyllite and marble of Sinian Xichangjing Group，the electrical indicator of prospecting is the medium -low resistivity transition zone.