Abstract: In order to improve the efficiency of the operation and maintenance of expressway electromechanical equipment, this paper used technologies such as Augmented Reality (AR), audio and video fusion, and waveguide lenses to design AR intelligent glasses that could be used in the expressway electromechanical equipment operation and maintenance information interaction dispatching management system, implemented functions such as equipment parameter visualization, remote cooperation, and AR display during maintenance. This device has been tested on the electromechanical operation and maintenance system of the G2 expressway in Beijing-Tianjin-Tanggu. The test results show that the use of AR smart glasses can effectively improve the efficiency and quality of electromechanical equipment maintenance.