Abstract: As one of the effective methods to search for sulfide metallic deposits, the induced polarization (IP) method is widely applied in mineral exploration. The paper discusses the application of time domain IP method in mineral prospective survey in Fengcheng County, Liaoning Province. With area measurements in IP intermediate gradient, five IP anomalies are delineated. Based on geological and geochemical survey, four IP sounding profiles are laid out in the M4 anomalous area of Cu, Pb and Zn belts revealed by trench. The burial depth and shape of potential mineralized body are described, which provide suggestions for further deep prospecting.