Abstract:The ore area is located in thepalaeohigh of margin of Mesozoic continental volcanic basin. The sub-level fault structure is very developed. The both sides of the faults were selled with the rhyolite porphyry and the andesite porphyry, which has a destructive effect on the orebody and affecting orebode integrity. Using the three-dimensional processing method to geologic log, to show the truly spatial correspondence between orebody and the geologic feature. Excule the infracrustal rock which which is unmineralized rock , so that the valuation results and ore boundary are more realistic, close to the orebody. In fact, the purpose of improving the stripping plan execution rate, mining unit design execution rate and reducing the loss rate and delete rate has been achieved.