Line 1 of the Wuxi Metro () is a rapid transit line running from north to south, in Wuxi, Jiangsu Province, China.
Line 1 was opened on 1 July 2014 and a Southern extension opened on 28 September 2019. The line is 34.6 km long with 27 stations.
A separate-named northern extension, called Line S1, is started construction in October 2019, construction completed in 2023. Line S1 opened on 31 January 2024 (free trial before formal open during 20âÂÂ22 January).
Line S1 is 30.4 km in length with 10 new stations (9 in operation, Xiakewan Science City station is under construction), including 10.5 km underground section and 5 underground stations. There are through service between Lines 1 and S1.
Further extension of Line S1 including a Northern extension to Jingjiang (a county-level city), a Southern extension to urban area of Wuxi, and a branch to Sunan Shuofang International Airport.