Abstract:IP intermediate gradient and IP sounding are effective geophysical methods for searching lead and copper polymetallic deposit. Application of the two means has been used in searching lead and copper polymetallic deposit in Cangshan county has been analyzed in this paper. Through carrying out IP intermediate gradient and IP sounding means and data interpretation, IP anomaly target areas have been circled, groove and drilling engineering abnormal have been verified, and one lead and copper polymetallic deposit has been found.