Globalization makes the world become an indivisible whole more and more.It is one of the strong trends and motives in the urban development in the 21st century.On the background of its conditions and the construction for a big city,the thesis points out that Zigong,in order to establish a characteristic international regional center city,should strengthen the development of green technology,export-oriented economy,tourism and services,and raise population quality and optimize the urban layout continuously.