Abstract:The primary task of building a transportation power is scientific and technological innovation. Industrial digitization is the inevitable development trend in the field of highway industry. At present, the construction of smart Expressway in China is still in the initial stage of development, and there is no standardized definition and functional framework. In order to carry out the digital management of all elements of transportation infrastructure, take Lexi expressway project as an example, from the whole life cycle of planning, design, construction, operation and maintenance, apply the digital twin intelligent construction and management integration platform of all elements of Expressway cooperation, It lays a good foundation for realizing the life cycle information management of highway construction.