ZHANG Zhongjing inherited and developed 7 medical classics and 11 classical prescriptions recorded in Record of Art and Culture

History of Han Dynasty

and discussed Guangtang Liquid（广汤液）

which was combined into 16 volumes of Treatise on Cold Pathogenic and Miscellaneous Diseases（《伤寒杂病论》）

which was divided into 2 parts by the later generation

i.e. Treatise on Cold Pathogenic Diseases（《伤寒论》） and Synopsis of Golden Chamber（《金匮要略》）. It is believed that the syndrome differentiation system in Treatise on Cold Pathogenic Diseases includes 6 types of syndrome differentiation including the main prescription-syndrome differentiation

quasi prescription-syndrome differentiation

combined prescription-syndrome differentiation

medicine-syndrome differentiation

analogous syndrome differentiation and accompany syndrome differentiation（mistreated disease

probabal syndrome

assuming syndrome）. The authors summarized and combed from systematic thinking to promote the understanding of ZHANG Zhongjing′s thinking mode.