Abstract:With the development of urban economy and the expansion of space, there are more and more projects of roads crossing expressways. In order to illustrate the comparison and selection process of crossing scheme, taking the project of Feitian Road crossing G30 Lianhuo Expressway in Jiuquan City as an example, the multi-factor comprehensive comparison and selection are carried out according to the influence of construction method, high-speed traffic supporting measures, regional construction technical strength, social contradictions in project construction, engineering cost and other factors on the crossing scheme, and combined with the current site facilities and geological conditions. Finally, a scheme of changing road into bridge suitable for it is selected. The obtained conclusion can provide the useful reference for similar projects.