Abstract
This paper consists of three parts. The first is to find factors considering the urban structure on the urbanization of 68 cities in Japan. Using the method of factor analysis to approach this object, we find out four factrs in concern to the urban structure. The secon is to classify into groups based on four factors in concern to urban structure. By means of cluster analysis, 86 cities are classified into five clusteres. Finally, the relationship between the urban development index and the urban structure is discussed by the result of discriminant function method.