In order to effectively achieve the dynamic management of the mine produces,taking digital mineral deposit model as the basic tool and variogram as the key content and basic means,a study has been made onthe basic characteristics of regionalized variables of the No.91 orebody in Dachang,Guangxi,the three-dimensional visualization,dynamic delimitation and reserves calculation of the Orebody have been achieved.This provides a digital management means for reasonably exploitating the No.91 orebody in Tongkeng Mining area,Dachang,Guangxi.