Abstract: During the construction of highway and bridge subgrade and pavement, highway bridge is a vital part of it. Therefore, the staff should strengthen the development of highway and bridge construction work, not only focus on highway and bridge technology and management issues, but also in-depth exploration of the problems existing in various aspects of construction and construction. Based on this, this article conducts an in-depth analysis of the construction quality control of highway and bridge subgrade and pavement, for reference.