Abstract:It is a major deployment made by the CPC Central Committee and the State Council to build a unified land and space basic information platform, and build a land and space planning implementation and supervision system integrating cities and counties. Combining with actual needs of natural resources informatization in Xiajin county and making full use of the existing planning and construction achievements of land and resources big data center in Xiajin county, the overall architecture design, database design and function design of the county's land and space basic information platform, and focuses on the spatial data management based on big data, micro service architecture and cloud service management support applied in the platform construction The three key technologies of unified portal management and unified operation and maintenance management solve the difficulties related to the highquality management and application of spatial data, the variability of business applications and system application security, and provide some references for the construction of land and space basic information platforms in other regions. The platform has been tested by trial operation. The system has perfect functions and stable operation, which can meet the business application requirements of the county's natural resources and planning system, greatly promote the update and maintenance mechanism of the county's natural resources data, and realize the co-construction and sharing of natural resources data and the efficient and intensive autonomy of government office.