Beijing Metro Line 7 is a subway line in the Beijing subway network and part of the Capital Airport Line. The line began construction at the end of 2008 and was put into operation at the end of 2014. The total length is about 23 kilometers, with a total of 19 stations, namely: Beijing West Railway Station, Wanzi Station, Daguanying Station, Guang'anmennei Station, Caishikou Station, Hufangqiao Station, Zhushikou Station, Qiaowan Station, Ciqikou Station, Guangqumennei Station, Guangqumenwai Station, Jiulongshan Station, Dajiaoting Station, Baiziwan Station, Chemical Industry Station, Nanlouzizhuang Station, Happy Valley Scenic Area Station, Shuanghe Station and Chaoyang Park Station .

This subway line covers Fengtai District, Xicheng District, Dongcheng District, Chaoyang District and Daxing District in Beijing. It connects multiple transportation hubs in Beijing, such as Beijing West Railway Station and Capital Airport. This line is also one of the main modes of transportation for many citizens and tourists to travel to Beijing’s famous attractions and business districts.

In addition to connecting multiple regions and transportation hubs, Beijing Subway Line 7 also connects many famous attractions and business districts. For example, Nanluoguxiang, 798 Art District, Sanlitun Business District and CBD Business District can all be reached directly through this line. Therefore, this line is also one of the preferred modes of transportation for many tourists to go to these places.

In short, Beijing Subway Line 7 is an important part of Beijing’s subway network, providing citizens and tourists with convenient transportation. Whether going to the city's transportation hubs or famous attractions and business districts, this line provides people with a convenient, fast and comfortable way to travel.