Abstract: Based on the resources of provincial BeiDou ground based augmentation systems, this paper combines the production needs of natural resources industry, carries out research on key technologies such as “virtual grid technology” and “location service response technology of large-scale concurrent users” based on space-time information technology, and develops the location service platform of Fujian BeiDou ground based augmentation system. It integrates the functions of system operation and maintenance, public service, achievement display and data sharing, improves the level and ability of public service, and meets the demand of large-scale real-time location service.