The Pingtung Line (Chinese: 屏東線; pinyin: Píngdōng Xiàn; Pe̍h-ōe-jī: Pîn-tong Soàⁿ) is part of the West Coast line of Taiwan Railway.

[3] Taiwanese government stated in 2007 that it reserved the possibility to upgrade the entire section to dual-track railway when the number of travelers through Pingtung Line reaches a certain level [4] The line was completed in 1941.

[5] The section between Pingtung and Chaozhou was electrified on August 23, 2015, when the elevated tracks between the two stations opened.

The plan was approved by the Ministry of the Interior on June 3, 2013, and construction began on November 16, 2014.

[7] Aside from electrifying the tracks, the following upgrades were carried out simultaneously:[7] The infrastructure was completed in October 2019, and beginning on November 8, test runs using electric trains were carried out on the line.