With the rapid development of urbanization in China,the scope of urban areas continues to expand out-ward,and the commuting time in urban areas is further extended.As a long and linear project,the selection of express-ways in highly developed cities will have a profound and lasting impact on the city.This paper deeply analyze the influ-encing factors of expressway laying methods,the impact after laying,and the applicability of laying forms,filling the gap in the research of laying forms in the field of expressway.