1. Huangdi Neijing-the foundation work of traditional Chinese medicine

This is the earliest extant classic of traditional Chinese medicine in China. It marks the initial formation of the unique theoretical system of traditional Chinese medicine and lays the theoretical foundation of traditional Chinese medicine.

Huangdi Neijing is a medical masterpiece that studies human physiology, pathology, diagnostics, therapeutic principles and pharmacology. Theoretically, the theories of yin and yang, five elements, pulse condition, Tibetan image, meridians, etiology and pathogenesis, symptoms, diagnosis, treatment, health preservation and luck of traditional Chinese medicine are established.

2. Treatise on Febrile Diseases-a masterpiece of exogenous diseases

It is the first monograph on clinical medicine in China, and has established a system of syndrome differentiation and treatment of six meridians.

Treatise on Febrile Diseases is a monograph on treating exogenous diseases by differentiation of six meridians. This paper discusses a series of pathological changes caused by human body feeling the evil of wind-cold and how to treat it dialectically. He divided the symptoms into six types: sun, Yangming, shaoyang, Taiyin, Jueyin and Shaoyin, which were called "Six Classics". According to the strength of human body's disease resistance, the severity of illness and other factors, various symptoms in the evolution of exogenous diseases are summarized as symptom characteristics, lesion location, which viscera and viscera are damaged, the trend of cold and heat, the rise and fall of pathogenic factors and so on as the basis of diagnosis and treatment.