The notion "sage" has been widely discussed by the philospohers all through the ages. Different in content as it is, nevertheless, all schools treat sages as the representative of the ideal personalities and the upmost self- cultivation. Accordingly, the issue concerning the notion "sage" is discussed as follow: the content、the realm、and the basis of and the way to be a sage. Thus, from the development of the theory of "sage" during the wei and tsin denasties, the article that follows will analyze the complementary phenomenon of the Confucianism and Taoism. It is hoped that the sequence of ideas about the above- mentioned theory can be clarified. Furthermore, through the development of that theory the complementary and permeable effects between the two schools can also be made clean.