The Chengdu–Dujiangyan intercity railway is a dual-track, electrified, passenger-dedicated, higher-speed rail line in Sichuan Province, connecting the provincial capital, Chengdu with the satellite city of Dujiangyan. The line is 65 kilometres (40 mi) in length with 15 stations. China Railways CRH1 train set on the line reach a maximum speed of 220 kilometres per hour (140 mph) and make the full-trip in 30 minutes, before 2018. The line was built in 18 months and entered into operation on May 12, 2010. The railway is built to withstand an 8.0-magnitude earthquake. The Chengdu–Dujiangyan intercity railway has two branch lines: Pengzhou Branch line is 21.2 kilometres (13.2 mi) in length with 6 stations, and Lidui Branch line is 6 kilometres (3.7 mi) in length with 3 stations. In 2019, China Railways CRH6A-A (Tianfu) train sets on the line started to operate up to 200 kilometres per hour (120 mph).

Dujiangyan is a county-level city of Sichuan Province, Southwest China, it is under the administration of the prefecture-level city of Chengdu. Its north-west region forms a border with southern Ngawa Tibetan and Qiang Autonomous Prefecture. It has an area of 1,208 km2 (466 sq mi) and had a population of 710,056 in 2020.