Guojia Tushuguan (National Library) Station, also known as National Library station or Guojiɑ Tushuguɑn Zhɑn) is an interchange station on Line 4, Line 9 and Line 16 of the Beijing Subway. Its name is derived from the nearby National Library of China. The station features a double-island interchange layout, with Line 4 trains on the outside and Line 9 trains on the inside, which allows most riders to change lines simply by crossing the platform, instead of walking between levels. This configuration is known as cross-platform interchange.^[2] The station handles 106,000 transfers between Lines 4 and 9 per day.^[3] The platform for Line 16 is built under the Line 4 and Line 9 platform.^[4] If the through service of Fangshan line to Line 9 is counted, which started on January 18, 2023, this would be the first four-line interchange on the Beijing Subway.

Quick Facts General information, Location ...

Guojia Tushuguan (National Library) 国家图书馆
Southbound platform of Line 4 and Line 9 Line 16 platform
General information
Location	Zhongguancun South Street Haidian District, Beijing China
Operated by	Beijing MTR Corporation Limited (Lines 4 and 16) Beijing Mass Transit Railway Operation Corporation Limited (Line 9)
Line(s)	Line 4      Line 9      Line 16      Fangshan line (through service to Line 9)
Platforms	6 (3 island platforms)
Tracks	6
Construction
Structure type	Underground
Accessible	Yes
History
Opened	September 28, 2009; 14 years ago (2009-09-28) (Line 4) December 30, 2012; 11 years ago (2012-12-30) (Line 9) December 31, 2020; 3 years ago (2020-12-31) (Line 16)[1]
Services
Preceding station Beijing Subway Following station Weigongcun towards Anheqiaobei Line 4 Beijing Zoo towards Tiangongyuan Terminus Line 9 Baishiqiaonan towards Guogongzhuang Fangshan line Through service (weekday peak only) Baishiqiaonan towards Yancundong Wanshousi towards Bei'anhe Line 16 Erligou towards Wanpingcheng
Location
Guojia Tushuguan (National Library) Location in central Beijing

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The line 4 and 9 stations have underground dual-island platforms with cross-platform interchange. On one side, southbound line 4 trains to Tiangongyuan interchange with originating line 9 and weekday peak Fangshan line (through service) trains heading towards Guogongzhuang and Yancundong, whilst on the other, terminating line 9 and weekday peak Fangshan line (through service) trains interchange with northbound line 4 trains heading towards Anheqiao North. The line 16 station has a separate underground island platform.

There are 6 exits, lettered A, B, C, D, E and F. Exits D and F are accessible via elevators.

• Line 4 platform in May 2010, the white wall on the left shows construction of transfer to Line 9
• The day before the connection with line 9 opened to the public
• Line 4 & 9 concourse
• Line 16 concourse
• Line 16 station lamp decorated with Tang dynasty poem On Hearing An Wanshan Play the Reed-Pipe