This article summarizes the theory of life cultivation of the founder of late Japanese Kampo, Manase Dosan, who was influenced by ancient Chinese physician Sun Simiao, Li and Zhu medical theory, and Confucianism. In his opinion, postnatal tonifying, self-cultivation and life-cultivation should be valued. This article discusses his major theory including life cultivation of elder people and warriors in the aspects of diet and life habitation respectively. Also, it describes how Manase Dosans theory had affected after generation, Japanese Kampo, and critical thinking. Hopefully, this article will assist in the development of life cultivation of Traditional Chinese Medicine.