Abstract: Geological data is a record of geological work, and its service field is increasingly widespread.In the Inner Mongolia, combined with the actual situation of the region, Ordos is used as a pilot to actively explore the extension of geological data management and service to the Allied City.With the support of relevant policies, the geological data management and service have been realized in Ordos administrative area, and good results have been achieved.This paper proposes the geological data management and service to the Allied City by summarizing the experience of geological data management services.