The Zhaishang gold deposit is a large-size gold deposit in West Qinling area. The ore bodies occur in the shatter zone of Devonian and Permian strata and contain rich metallic sulfides. To extend the gold ore district, the authors used IP medium gradient survey to delineate the polarizability anomalies, IP combined profile to infer the strike and extension of the shatter zone and metallic sulfides, and the compound polar distance combined profile and IP sounding to judge the dip and downward extension. Drill holes of ZK192, ZK112 and ZK42 were arranged. The inferred ore conditions in the ZK432 hole are coincident with the real conditions, showing satisfactory results.