The Pingxi Line (Chinese: 平溪線; pinyin: Píngxī Xiàn; Wade–Giles: P'ing2-hsi1 Hsien4; Pe̍h-ōe-jī: Pêng-khe Soàⁿ) is a 12.9 km long, single-track[1] railway branch line of the Taiwan Railways Administration.

It runs through Ruifang and Pingxi Districts in New Taipei City.

The railroad was originally built to transport coal.

It was completed in July 1921, during Japanese rule.

All trains have through service to the Yilan Line.