Abstract: With the development of highway construction, current status of highway construction safety is not optimistic. In order to exactly evaluate the safety state of highway construction project, a three-level safety assessment indicator system for highway construction is constructed. Based on the analysis of safety assessment methods used at home and abroad, an overall evaluation method is built up by using the theory of fuzzy synthesized evaluation. Finally, this method is demonstrated with an example, it shows that the method can not only objectively reflect the safety status of highway construction project, but also can make a comparison of the safety status between different projects, which is helpful for the government organization to make a different supervision and inspection on the highway construction project.