Traditional Chinese medicine (TCM) has very good efficacy for the treatment of chronic cough， a common symptoms of respiratory system disease. Several chapters in Treatise on Febrile and Miscellaneous Diseases (Zhang Zhongjing) discussed the treatment of chronic cough based on syndrome differentiation. We enumerates the clinical use of Gancao Xiexin decoction， Sanwu Huangqin decoction， Dahuang Gancao decoction， Danggui Shaoyao powder， and analyzed the treatment features in order to inherit and develop Zhongjing academic thinking.