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These data are the current operating routes and transfer stations of underground rail transit in the top three major cities of China (Shanghai, Beijing and Guangzhou) (up to 2018).Data were collected from the official websites of metro stations in three major cities.
The Horizontal and Column in Table show the underground rail transit lines.The intermediate parameter is the transfer station between lines.

Metro official network links in three major cities:
Shanghai. http://service.shmetro.com/yxxlt/index.htm
Beijing .https://map.bjsubway.com/
Guangzhou .http://cs.gzmtr.com/ckfw/

