Abstract: This paper states the idea for building coal geology information services respectively from such aspects as the general needs and system framework, data management model, system platform, applied technology etc.One combination management system is proposed which management unit based on project, service unit based on file, to accesses distributed electrical file sets physically restored as MongoDB format, through catalogue indexed as Oracle database.The system safety is guaranteed by the standalone acquisition tools and separated networks between inner and outer.Inner comprehensive management system runs on intranet, fulfills data integration, management, search functions etc.External system is based on internet to offer coal geology information services.Building the system will extend the breadth and depth of coal geology information services, and promote important effort to social economic development from information services of industry geology.