Abstract:Through collection of land, housing, forestry, sea registration graphics, attributes and data files, cleaning, field verification and information collection work have been carried out, and complete data has been gained. In accordance with the construction standards and storage requirements, unified conversion of all data has been carried out. A onetoone correspondence between graphic data, attribute data and archival data of the land and the housing has been established, and the correlation check work has been carried out. The data of the land and the housing are related to the data of the spatial logical formation and ownership association. Thus, "combination of housing and land" can be realized. According to the design specification requirements of real estate database, the completed real estate data is unified into the database. It will provide basic data resources for business system which has relation with the real estate.