The Huolongjing (; Wade-Giles: Huo Lung Ching; rendered by its translator into English as Fire Drake Manual; in modern English, Fire Dragon Manual) is a 14th-century military treatise that was compiled and edited by Jiao Yu and Liu Ji of the early Ming Dynasty (1368–1644 AD) in China. It outlined the use of various 'fire–weapons' involving the use of gunpowder.