For the prefabrication and assembly construction process of utility tunnel, increasing the proportion of standard section can significantly reduce the difficulty of on-site construction, improve equipment turnover and improve the comprehensive benefits of the project. Based on the full section prefabrication and assembly project of a fourth cabin utility tunnel in Hebei Province, this paper puts forward a construction technology for transporting and installing segments above the utility tunnel structure, and puts forward measures to increase the proportion of standard sections from the aspects of overall design, standard section design and node design of the utility tunnel,, so as to provide reference for the design of other utility tunnel projects.