The Bitong line of the Chongqing Suburban Railway is a suburban rapid transit line in Chongqing, China.

It connects Tongliangxi in Tongliang District with Bishan station of the Chongqing Rail Transit, providing an interchange with Line 1 and through running with Line 27 in the future.

It is 37.5 km long and features 9 stations.

It opened on January 2, 2025 after a week of trial operation.

[2][3][4] Bishan SkyShuttle