After nearly 30 years of exploration and research, tens of thousands of cases of clinical diagnosis and treatment, Mr. Jin Wei creatively put forward a brand-new pulse theory-Jin's pulse theory, which is based on the theory of traditional Chinese medicine and modern medicine, combined with the knowledge and achievements of contemporary related science, with pulse diagnosis as the means and mathematics as the quantitative tool. This theory can be regarded as the product of the organic combination of traditional Chinese medicine and modern medicine, and it is a brand-new theory. This paper expounds the physiological, pathological and physical essence of pulse, explains the concepts of dynamics and pulse flow in detail, demonstrates that pulse is the carrier of physiological and pathological information of the body, and then discusses that the dynamic change of pulse is the basis of disease diagnosis. Clinical pulse diagnosis under the guidance of the above theory can make more accurate qualitative, quantitative and localization of diseases, and it is harmless. Its diagnostic accuracy can reach more than 85%, which is an innovation and breakthrough of traditional Chinese pulse science.