Abstract
Arata Isozaki is one of the Japan's most important contemporary architects with an international reputation and has designed notable buildings in Asia, Europe, and the United States. Arata Isozaki is not an architect simply explained by a single ism or style, he has dedicated himself to express all diversities implied in different periods and styles. With an avant-garde spirit and enthusiastic creativity, he has devoted all his efforts to bring these diversities and complexities into his own architectural works. The study was aimed to identify the key characteristics implied in his overall design concept. Through the analysis of his works, the key features underlined in his works were characterized by five key words, which are tradition, eclectic, metaphor, metabolism and proportion. These five characteristics have been well Presented in his works individually and sometimes as a whole. His unique combination among these key design concepts has been impressed by many other architects in worldwide.