Traditional Chinese medicine is one of the component parts of the international health care system. It has been an inevitable trend to merge traditional Chinese medicine into systemic medicine. Along with the emergence of the concept of systemic disease, the wide dissemination of evidence-based medicine and the establishment of thought pattern of systemic medicine, the exploration emphasis of modern medical science has been transferred from microcosmic or solid structure to macrocosmic unit and system relation. The mainstream development of modern medical science is to integrate different medical systems into a complete system. Therefore, the integration of traditional Chinese medicine and Western medicine is also necessary under this condition.