Bingpo Hanguang Jian (冰魄寒光劍), literally Sword of the Icy Soul and also known by its alternative title Yougu Hanbing (幽谷寒冰; "Frost of the Hidden Valley"), is a wuxia novel by Liang Yusheng. It was first published in 1962 as a serial in the Hong Kong newspaper Cheng Wu Pao (正午報).
The story follows Gui Huasheng, a swordsman of the Wudang Sect who becomes involved in political intrigue and cross-border conflicts in Tibet and Nepal. The novel is the fifth instalment in the Tianshan series, preceded by Jianghu San Nüxia and followed by Bingchuan Tiannü Zhuan.