It is understood that the third-phase project of Chengdu Metro Line 1 is composed of three parts: north, branch and south part. The main line of it is laid in the central axis of Chengdu, all of these are underground lines. The total length is about 18.68 km, with 13 stations, including 6 transfer stations. The northern section extends northward from the lake of Shengxian lake to Weijianian station. The branch section extends from Guangdu station to Wugensong station; The south section sets Huayang station, Haichang road station, Guangfu station, Hongshi park station, Luhu lake station, Wuhan road station, Tianfu park station, Xibo city station, Guangzhou road station, Xinglong lake station, Science city station.