Abstract: With the complexity and scale of urban space utilization, the traditional 2D GIS can not meet the needs of refined and accurate spatial information management of 3D real estate. Starting from meeting the requirements of real estate registration, studying on the key technologies such as the establishment of oblique photography real 3D model, single body of 3D model, real estate registration data integration, the correlation between 3D model and the real estate registration data, and the establishment of 3D real estate property rights surveying and mapping database.And it is verified by an example,which realize the refined management of 3D real estate registration information, improves the work efficiency of specific businesses in the process of real estate registration and fully assists the rapid progress of unified real estate registration.

Key words: 3D real estate, property rights surveying and mapping, unified registration of real estate, oblique photography modeling