In this paper,the origin,treatment ideas and preparation methods of Qingjin Huatan Decoction were researched,and the associated prescriptions of Qingjin Huatan Decoction were systematically sorted out,in order to have a clear understanding of Qingjin Huatan Decoction and derivation of associated prescriptions,and to provide literature basis for clinical application,teaching and scientific research.The study found that the theory of fire cough began to emerge in the Qin and Han Dynasties,and was continuously supplemented and improved by physicians in successive dynasties.ZHU Danxi in the Yuan D...