Meridian theory is the most basic theory of traditional Chinese medicine. It plays an important guiding role in acupuncture, massage, syndrome differentiation of six channels of typhoid miscellaneous diseases and other traditional Chinese medicine external treatment methods. To understand Chinese medicine, we should start with the diagram of human meridians. The human meridians are the channels through which qi and blood flow in the human body, belonging to the zang-fu organs and distributed throughout the body, connecting various tissues and organs into an organic whole. Meridian is the general name of meridian. Meridian refers to the meridian, which is like a straight path and the backbone of the meridian system; Collaterals refer to collaterals, just like networks, which are tiny branches of meridians. Meridian theory is one of the essences of traditional Chinese medicine. Together with the basic theory of viscera, qi and blood, it has extremely important guiding significance for clinical syndrome differentiation and treatment of various branches of traditional Chinese medicine, especially acupuncture. Correct knowledge and understanding of human meridian diagram is the premise of meridian health care, meridian health care and meridian treatment. I didn't know the meridian, so I made a mistake from the beginning. Since ancient times, Chinese medicine has made deep research on human meridians. For example, Li Shizhen, a famous master of traditional Chinese medicine, not only compiled Compendium of Materia Medica, but also had profound attainments in the study of meridians, and the Examination of Eight Veins in Strange Classics was his summary of the study of meridians. The meridian diagram of human body consists of the twelve meridians diagram and eight pulse diagrams, including three yin meridians of hand (lung meridian of hand Taiyin, pericardium meridian of hand Jueyin, heart meridian of hand Shaoyin), three yang meridians of hand (large intestine meridian of hand Yangming, triple energizer meridian of hand Shaoyang, small intestine meridian of hand Taiyang), three yang meridians of foot (stomach meridian of foot Yangming, gallbladder meridian of foot Shaoyang, bladder meridian of foot Taiyang) and so on. Eight-pulse diagram of odd meridian includes Du-pulse diagram, Ren-pulse diagram, Chong-pulse diagram, Homopulse diagram, Yin-pulse diagram, Yang-pulse diagram, Yin-pulse diagram and Yang-pulse diagram. The twelve meridians is the main body of the meridian system, also known as "Zheng Zheng". The "odd" of the eight veins in the odd meridian means "different" and refers to the eight veins different from the twelve meridians. "Don't dodge".