Abstract: The geographic data set integration is an important content of geography information science researches. The traditional spatial data integration ways cannot effectively integrate the semantics of the different geography space data, thus has brought the information acquisition and the information understanding gap for integrated data sharing and the use. An ontology is an explicit specification of aconceptualizati. It may effectively integrate the geography space data and its semantics, and may overcome the flaw which the traditional space data integration method is unable to overcome. This study based on the ontology theory, the method and in the applied research around domestic and foreign geography information academic improved ontology-driven geographic data set integration’s frame, and carried on the confirmation explanation by the concrete example.