In order to solve the increasingly prominent problem of road surface crack repair and maintenance,this paper studies the innovation and application of repair and minor maintenance technology for road surface cracks.Through in-depth analysis of current highway maintenance technology,this paper explores and introduces new technological innovation methods,including efficient crack detection technology,self-repairing concrete,and robot maintenance technology.The research results indicate that these technological innovations not only improve repair efficiency,but also greatly extend the service life of highways.In addition,the practical application of technological innovation in highway repair and maintenance work is discussed,as well as how to promote these new technologies.