Based on the collection, sorting, and in-depth analysis of the relevant data from the major active tectonic belts in central and southern Xizang, the basic structural characteristics of the region are systematically summarized, and the structural units are classified in detail. At the same time, the constructional and deformation characteristics of each tectonic unit are deeply discussed, and the tectonic levels and deformation phases of this area are further defined, and the tectonic deformation sequence is established. Finally, a comprehensive and systematic exposition of the geological development history of this region since the Jurassic period is presented.