This paper studies the highway big data management system based on digital scene technology. This system comprehensively uses multiple technical means, such as BIM model, engineering data, GIS platform and big data management, to realize the interaction and integration of engineering virtual scene and highway management business, and improve the digital management level of highway facilities. In this paper, specific analysis on the method of BIM model adapting to the data platform, the visualization technology framework of the data management platform and the functional module applied to the data management platform, etc. In order to improve the application efficiency of the digital scene, the lightweight algorithm for BIM model is developed based on the principle of QEM. Finally, the application of digital scenarios technology in big data management for highway engineering has displayed the application of various scenarios, which shows that the system has high versatility and practicality.