Abstract
The rapid economic development has promoted the construction of infrastructure, such as highways and water conservancy projects. The establishment of highways has facilitated people's lives and made the distance between regions shorter and shorter. However, the construction of highway engineering is a big project, which not only has a long cycle, but also has a high economic cost. During the construction process, a large number of construction materials and personnel will be applied. If the project cost management is not implemented for the highway construction, it will easily affect the final quality and profit of the entire project. This article expounds the significance of dynamic management and control of highway engineering cost, and analyzes the strategy of dynamic management and control of highway engineering cost.