The Sichuan- Tibet traffic corridor passes through the plateau canyon area on the eastern margin of Tibet Plateau, and large- giant high- position landslides occur frequently, which is an important factor that must be considered in the planning and construction of transportation such as railways and expressways. Based on the analysis of regional geological background and field investigation, taking the geomorphic characteristics, slope rock mass structure and triggering conditions as the basic elements, six geo- mechanical models of typical high- position landslides on the Sichuan- Tibet traffic corridor are summarized, including accumulation sliding type, bedding sliding- tension cracking type, unloading shear type, karst transfixion- tension cracking type, collapse diffuse type and structural control type. Combined with the typical cases of high- position landslide, the initiation mechanism of various landslides is studied, and the corresponding cause analysis is given. Considering the control factors and susceptibility zoning results of landslides, the prone target area of different high- position landslides along Ya’an- Linzhi segment on the Sichuan- Tibet traffic corridor is preliminarily delineated, which has an important guiding significance for early identification of high- position landslides, site selection of major projects and disaster prevention and mitigation of major projects.