In recent years, China's highway engineering construction has developed rapidly and it has entered into the stage for finer planning. The construction environment and geological conditions of engineering in mountainous areas are complex, which increases the difficulty and requirements of construction progress management and requires the introduction of new technical means to assist management. Using BIM parametric modeling and realistic modeling techniques, the study proposes a method to construct a digital twin model of highways in mountainous areas and designs a data collection and mapping scheme on the basis of Bluetooth technology, GPS technology and ZigBee technology. Relying on the above work, this study constructs a progress derivation model based on the digital twin. The digital twin of construction site can be used to deduce the construction progress and to realize the progress management decision based on real-time data, and it can also contribute to the facility management of highways in mountainous areas.