This paper endeavors to explain the essential difference between Chinese Medicine (CM) and Western Medicine (WM) based on the primary starting points. These points in Chinese Medicine include two: (1) The target of research focus on the live body and its functions; (2) Adopting methodology of systematic theory to observe and sum up the laws of the human body and natures and effects of relations between internal organs or amongst the external environment of natural, social and psychological ecology. Marx had pointed out that the essenti...