The 10 lines in Phase III are: Line 1 Phase III, from Xiasha Jiangbin Station (exclusive) to Xiaoshan Airport Station, with a total length of 11.5 km; Line 2 Phase III, from Xinliang Road Station (exclusive) to Liangzhu Station, with a total length of 1.6 km; Line 3 Phase I, with the main line from Xingqiao Road Station in Yuhang District to Wenyi West Road Station, and the branch line from Xiaoheshan to Baijiayuan Road Station, with a total length of 52.2 km; Line 4 Phase II, from Pengbu Station (exclusive) to Zijin'gang Road Station, with a total length of 23.4 km; Line 5 Phase II, from Central Park Station (exclusive) to Lüting Road Station, with a total length of 3.2 km; Line 6 Phase II, from Fengbei Station (exclusive) to Dongning Road Station, with a total length of 8.3 km; Line 7, from Wushan Square Station to Jiangdong Er Road Station, with a total length of 45 km; Line 8 Phase I, from the current Wenhai South Road Station of Line 1 to Jiangdong Station, with a total length of 17.2 km; Line 9 Phase I, divided into north and south sections, with the north section extending northward from the current Linping Station of Line 1 to Changda Road Station, and the south section extending southward from the current Keyun Center Station of Line 1 to Sijiqing Station, with a total length of 17.8 km; Line 10 Phase I, from Zhejiang University Station to Xinxing Road Station, with a total length of 15.9 km.

It is worth noting that Xiaoshan Airport will be served by Line 1 Phase III and Line 7. Line 1 Phase III, as the first airport metro line, will be the first to start construction and strives to be completed and opened to traffic by the end of 2019. Line 7, which passes through Xiaoshan, will become a "fast track" connecting to the airport, making it convenient for Xiaoshan residents to take the metro to the airport.

At present, the metro lines under construction in Hangzhou include the northwest section and Phase II of Line 2, the south section of Line 4, Line 5, Line 6, as well as the regional rail transit Lin'an Line and Fuyang Line. The total length of metro lines under construction is 108 km, and the intercity line length is about 60 km. Among them, the lines under construction in Xiaoshan are Line 5 and Line 6, which are planned to be completed and opened to traffic by the end of 2019.