Abstract:With the large-scale expansion of transportation construction and the growing maturity of computer technology,the digital transformation of expressways has put forward new requirements for project builders and operation and maintenance personnel.Due to the complexity and uncertainty of the links involved in the construction and maintenance process of expressways,traditional construction management model is no longer able to meet the needs of digital transformation,as an emerging technology, informatization technology is one of the means to assist expressways to meet the growing job demands and improve productivity.Informatization technology effectively improves the utilization of basic data,and provide data guarantee for project builders and make the traffic smoother,in the future, it will also be an important carrier and technical means for realizing the digitization, networking and intelligence of expressways.