Structure of the inter-city network and integration of various facilities is changing. In the Tokyo metropolitan area, the flow of people has changed greatly over the past 20 years. Comparing the 70 cities including Marunouchi, Akihabara, Ginza, Shinagawa, Shinjuku and Shibuya, by Tokyo metropolitan area person trip survey of 20 years ,we grasp the structure change of each area's people assembling availability. To understand what is happening the flow of people's transaction and surrounding region,we study the urban economic effect what changes each change value of that urban economy. CGE(computable general equilibrium) model is effective as econometric models for that. It is intended to use CGE model of this study is to ana-lyze the economic effects of changes in flow of people in urban network.