Line 12 of the
Beijing Subway
The Beijing Subway is the rapid transit system of Beijing Municipality that consists of 25 lines including 20 rapid transit lines, two airport rail links, one maglev line and 2 light rail lines, and 463 stations. The rail network extends ac ...
() is
rapid transit
Rapid transit or mass rapid transit (MRT), also known as heavy rail or metro, is a type of high-capacity public transport generally found in urban areas. A rapid transit system that primarily or traditionally runs below the surface may be c ...
line under construction in
Beijing
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Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...
.
The line is with 20 stations. It is fully underground.
The line between Sijiqing and Dongfeng will be opened in 2023, due to planning adjustments east of Dongfeng.
Stations
Rolling stock

The line will use 8-car Type A rolling stock.
History
Line 12's route has undergone substantial changes on the planners' drawing board.
In the late 1990s, one draft of the subway plan showed Line 12 running from the
Beijing South railway station
Beijingnan (Beijing South) railway station () is a large railway station (mainly serving high speed trains) in Fengtai District, Beijing, about south of central Beijing, between the 2nd and 3rd ring roads. The station in its present form opened ...
to Huangcun. The Beijing South railway station was then built with subway platforms for only Lines 4 and 14. The old plan of Line 12 is cancelled now.
A new plan of Line 12 was announced at January 2012. In June 2012, there were several media reports listing the planned stations of the line. The final planning of the line started from Sijiqing in
Haidian District
Haidian District () is a district of the municipality of Beijing. It is mostly situated in northwestern Beijing, but also to a lesser extent in the west, where it has borders with Xicheng District and Fengtai District.
It is 431 square km in ...
east to Guanzhuangluxikou in
Chaoyang District, following the northern
Third Ring Road. The entire line has 21 stations,
of which 15 will have transfers with other lines.
The line will provide relief for the northern arc of the congested
Line 10 loop line.
References
{{Beijing transit
Beijing Subway lines
Proposed public transport in China
Proposed buildings and structures in Beijing
Transport infrastructure under construction in China