Chengdu Guiyang railway passenger dedicated line starts from Chengdu east railway station, passes through Shuangliu International Airport to Meishan and Leshan in the south, passes through Qianwei County, Yibin City, Changning County, Xingwen County, Weixin county and Zhenxiong County in Yunnan Province, Bijie City, Dafang County and Qianxi County in Guizhou Province in the East, and finally enters the urban area of Guiyang. The main line is 648km long, with 24 stations and a design speed of 250km / h. On December 29, 2008, the Chengdu Leshan section of Chengdu Guiyang high speed railway was officially started; On December 20, 2014, the Chengdu Leshan section was put into operation; On June 15, 2019, Leshan Yibin section was put into operation; On December 16, 2019, the Yibin Guiyang section was put into operation, marking the completion and opening of the whole Chengdu Guiyang high-speed railway.