The aim of this paper is to clarify the distinguishing features of The International Garden and Greenery Expositions (IGGEs) through the considerations of changes in land use, before and after IGGE. In this study, we examine the land use transformation, with such respects as ①former status of land-use ②site-choosing reasons ③plan of site design ④status and landscape after the event. To begin with, we put IGGE, Osaka 1990, on the chopping board. Because it was the first IGGE in East Asia and had a great influence on other IGGEs from then on. Then, we take up IGGE, Hamanako 2004 & 2009, for consideration. Lastly, IGGEs in China 1999, 2006 & 2011, are compared with IGGEs in Japan. In this paper, we not only explain the physical change of landscape but also examine the reasons why such change had happened. In other words, we inquiry the thoughts and social background that promoted IGGEs. Therefore we are to collect and analyze the related official documents, public records, and reported materials, so as to approach the heart of the event. Through these investigations, the relations between Expositions and the spirit of the age are to be revealed, via land use change.
