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In order to realize the modernization of mine enterprises, enforcing “Digital Mine” construction is necessary. And the key of enforcing “Digital Mine” construction is to solve the effective storage and management of mine spatial data. The paper firstly shows the characteristic features of mine spatial data. Then it discusses the method of the storage and management of mine spatial data on the basis of PostgreSQL open source database that is a kind of the advanced object-relational database models. All of these can beat out a path for mine digital construction.