This article examines Confucius' thoughts of health preservation from three aspects. First, by respecting and accommodating the Nature, which is Confucius' doctrine, people learn that the truth of the Nature's revolution extends to people's strife for progress continuously. By showing respect for life and death, it comes to realize that mutual harmony existed between the Nature and human beings. Second, to keep a balance between the physical and the mental situations, people devote themselves to exercising and participating outdoor activities at leisure time. Third, the attitude that Confucius pursues a healthy life is to cultivate him with a good virtue. That is, not only keeping good health by focusing on sanitary and nutritious food, but also paying much attention to housing manners by maintaining proper etiquettes.