Abstract
With the coordinated development of today’s social economy with science and technology, various advanced technologies are being used in highway engineering, especially the distributed intelligent power supply technology in expressway tunnels, which has a very significant advantage. In order to realize the effective application of this technology and promote the power supply effect in expressway tunnel, this study analyzes the advantages of this technology and its application in expressway tunnel, hoping to provide scientific reference for the application of distributed intelligent power supply technology and the engineering development of expressway tunnels.