Abstract
This paper attempts to clarify change of urban structure by means of the multivariate analysis to simplify complex data and to understand the relationship between process of urban development and its structure. To explain the urban structure of Moriguchi city in Osaka, the last 20 years, from 1955 to 1975, factor analysis is carried out for their data at an interval of five years. In addition, result obtained from cluster analysis (these data consist of 71 indices for an year) showed the presence of six clusters and we discuss on character of development process of the urban structure. Finally, the relationship between process of urban development and its structure is discussed.