Abstract: The high-precision magnetic survey on Luziyuan mine Zhenkang Country played an important role on prospecting and conforming of magnet deposit,and provided reason over whether there were intrusion of intermediate-felsic rock and magnetic alteration zone in the middle part.According to the abnormal check,we found that the magnetic anomaly was caused by skarn-type magnetite.For the scope was very large,we thought that prospect of iron ore was exceed 3 hundred million tons,and the resource of lead zinc ore was exceed 3million tons.That the high-precision magnetic survey in Luziyuan mine gained good effects on prospecting.