These data are currently 10 lines and corresponding stations of Nanjing Metro. Among them, the first column in the table is the operation line, with 26 transfer stations and terminal stations in the middle(as of June 2019).These data were collected from the official network of Nanjing Metro. The official network of Nanjing Metro: {http://www.njmetro.com.cn/njdtweb/home/go-operate-center.do?tag=yyfw}