Line S1 of the Wenzhou Rail Transit (Chinese: 温州轨道交通S1线; pinyin: Wēnzhōu Guǐdào Jiāotōng S-Yī Xiàn)[2] is a suburban rapid transit line in Wenzhou running from to . The west section (Tongling - Olympic Center) has 12 stations[a] and is 34.38 km. The west section was opened on January 23, 2019.[2] The east section of the line (19.127 km[3] with 6 stations) was opened on September 28, 2019.
The full line is 53.5 kilometres (33.2 mi) long.[4]