Abstract: The city is a complex and open giant system with the governance problems of unclear chassis and low coordination in investigation, so it is in urgent need of a scientific, accurate and real-time management means. Facing the requirements of governance modernization, this paper studies a non-contact centimeter high-precision and fast urban tilt model acquisition method to improve the chassis inspection efficiency. At the same time, through structured and simplified aggregation, the corresponding logical relationship among elements, building entities and building units are established, and the basic and management attributes are obtained to build a comprehensive management platform for full cycle tracking. The practical application shows that this study provides an effective reference for realizing the fine management of urban construction information.

Key words: modernization of governance capacity, building entity, acquisition, application, full cycle