The regional spatial structure and traffic system have the time and space interactive relationship. In this paper, a new graph is described for the relationship between regional spatial structure and regional intercity rail transit network. Taking Wuhan urban agglomeration as an example, the quantitative relationship between the spatial structure and the intercity rail transit network is analyzed. Study results: (1) The main economic relation intensity network and the intercity rail transit network have a correlation. (2) The economic relation intensity between cities is strongly related to th...