The Hakubi Line (伯備線, Hakubi-sen) is a railway line operated by West Japan Railway Company (JR West) in the mountainous area of the Chūgoku region of Japan.

The experimental "Smart BEST" battery electric train was tested on the Hakubi Line between October and December 2012.

"Hakubi South Line"), was opened on 17 February 1925, between Shisawa (now Gōkei) and Kurashiki.

[5] The southern section was gradually extended north, extending to Bitchū-Kawamo on 31 July 1927, with connection between the north and south sections being made on 25 October 1928, from which date the entire line was named the Hakubi Line.

[citation needed] CTC signalling was commissioned on the entire line in 1972, and the Kurashiki to Hokidaisen section was electrified in 1982.