The special passenger line of nan-kunming railway is one of the "eight vertical and eight horizontal" rapid passenger transport channels in the national medium and long term railway network planning. It is an important railway channel connecting the southwest and south China, and a "golden corridor" for the sea in the southwest region. It can reach kunming to nanning in about 4 hours and kunming to guangzhou in about 7 hours, greatly promoting the border ethnic regions and regional economic and social development.
