In this paper, we will discuss the main characteristics of Korean traditional medicine and their bond with the philosophy of Noja(老子) to ultimately examine how "Dodeokgyeong(道德經)" affected medicine as a pragmatic field of study. Noja(老子) viewed the universe and the creatures living in it to be constituted by gi(氣), and that everything continuously moves and changes as a result of the conflicts between two opposing energies within, eum(陰) and yang(陽). "Hwangjenaegyeong(黃帝內經)" is about how this theory is applied to human lives. "Dodeokgyeong" speaks of the Heaven, Human, and Do accordance, offering the theoretical basis for the correspondence between nature and human in the "Hwangjenaegyeong", where the Heaven, Human and Do(道) accordance theory is embodied into each element of the human vital activity, establishing the identity of Korean traditional medicine as natural medicine. Noja declared life in accordance with Do(道) as an ideal way to live. "Hwangjenaegyeong" applies this idea to human vital activity setting the realization of Do the ultimate goal of life and offers actual guidelines. The preventive aspect of Korean traditional medicine is the characteristic most affected by "Dodeokgyeong". "Hwangjenaegyeong" and "Dodeokgyeong" both recognized the relativity of objects, and spoke of harmony and balance as the answer to conflicts between matters.