Line S1 of Hefei Metro () is an under construction L-shaped metro line in Hefei and Huainan, Anhui, China. The maximum speed can reach 120 km/h, reduced travel time from Xinqiao Airport to Hefei city center and vice versa for only 30 minutes.
It is the first intercity rapid transit line in Anhui province using GoA4 automation level.
History Construction began in 30 October 2021 with an estimated investment of 22.779 billion RMB.
On 6 February 2025, the tunneling sections from Hefeixizhan to Shihe Lu was successfully connected.
On 1 August 2025, Hefei Metro begin received first Line S1 rolling stock set.
On 22 August 2025, the first section successfully obtained single-vehicle certification.
In January 2026, the line successfully passed engineering acceptance, the main track laying was fully connected, and the bidding for power supply system and station equipment integration services was launched simultaneously.
On 1 February 2026, the line began trial operation without passengers, along with Line 7 Phase 1.
On 10 April 2026, the line had entered "train testing" mode.
On 16 April 2026, the section from Xinqiao Airport to Xinqiao Industrial Park successfully passed acceptance.
On 18 May 2026, electrical installations of 110KV main substation and six station passed pre-acceptance inspections.
Stations There are 10 underground stations and 4 elevated stations spanning 47.5 km long (including 23 km of underground section and 24.5 km of elevated section) with an average station distance is 3.65 km. The Hefei section spanning 36.4 km long, with 12 stations (10 underground stations and 2 elevated stations). Section Station name Transfer Distance Location Huainan section Shou County, HuainanHefei section HFE Shushan, Hefei HFEYingbin Dadao Changfeng County, Hefei Luyang, Hefei HFU Shushan, Hefei
Rolling stock The line uses 4-car type B rolling stock, each car approximately 20 meters long, 2.8 meters wide, and 3.8 meters high. The maximum passenger capacity of the entire vehicle can reach 1,300 people, with a top operating speed of up to 120 km/h. Throughout the train, it is equipped with wireless charging equipment layout, with 10 wireless charging devices and 18 USB charging ports.
References