In this paper, a time domain induced polarization ladder device,i.e.,the dipole-dipole phase IP sounding device,and CSAMT were employed in the study of the Wuniketu lead-zinc deposit in Inner Mongolia to verify the effectiveness of the comprehensive electrical survey in search for skarn lead-zinc deposits.The results show that,in the measurement of the induced polarization,attention should be paid to the power supply electrode and the relationship between the anomaly bodies,otherwise it will create a false anomaly.In areas with relatively good electrical circumstances of rocks and minerals,the induced polarization area measurement can reflect the abnormal distribution of the sources.Under the condition that the ore body and the rock have not significantly different resistivities,CSAMT sounding can basically better deduce the spatial location of the ore body in comparison with the Phase IP sounding.Therefore,the time domain induced polarization ladder device and the CSAMT electric method can play a greater role in the exploration of nonferrous ore deposits.