The Green line is a light metro line of the Taoyuan Metro that is under construction.

The green line will join with the Taoyuan Airport MRT at Kengkou and Hengshan.

Construction on the Green line began in Bade District, Taoyuan on 15 October 2018.

[1][2] A groundbreaking ceremony was held on 11 October 2019 and the first phase of the line between Nanzhu Road and Kengkou is projected to open in 2026.

Zhongli branch line (planned[when?])