Huangdi Neijing, a theoretical system of traditional Chinese medicine, has been formed for more than 2,000 years, limited by historical conditions, natural science and philosophical level at that time, so the contents recorded in the main body of Huangdi Neijing are historical, but the outlook on life, methodology-Taiji, Yin and Yang, five elements, unity of form and spirit, theoretical framework-Tibetan images, meridians, Wei Qi and Xue Ying, etiology and methodology established in Huangdi Neijing. Throughout the historical process of the formation and development of TCM, it is the formation and development process of TCM classics. The classics of traditional Chinese medicine are created by countless Chinese medicine scholars with tens of thousands of years of practice and understanding. The outlook on life, methodology and theoretical framework of traditional Chinese medicine established by classics will continuously inject new connotations with the development of history. The earliest existing medical classic in China, Neijing, is a book named Huangdi, which discusses medicine with Qi Bo and Lei Gong, so it is also called Huangdi Neijing. Huangdi Neijing is one of the four medical classics in China, which has a great influence on traditional Chinese medicine. Huang Qi refers to Qi Bo and Huangdi, and Huang Qi's technique refers to the exposition of Huangdi and Qi Bo in Huangdi Neijing. Later generations called TCM Huang Qi.