Abstract: Tunnel construction survey in highway construction projects needs to be carried out in engineering planning, survey and design, construction and construction. The core goal is to ensure that the tunnel can be accurately penetrated according to relevant requirements when the tunnel is excavated oppositely. In the construction of highway engineering, it is necessary to give full play to the value of tunnel construction survey. Based on this, this article expounds the characteristics of highway tunnel construction survey, analyzes the key points of actual construction survey, and proposes measures to ensure the quality of survey.