Aiming at the problems of frequent demolition and construction of temporary construction roads in different construction periods and high construction economic cost and time cost in the process of hub project construction，the prefabricated road construction technology is researched. The application of this technology in the Qianwei navigation-power junction project has reduced the economic cost and time cost of construction，and gained time for the construction of the main project. It is concluded that the application of prefabricated road construction technology can effectively reduce the construction cost of temporary construction road.