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In order to realize the intellectualized management of urban road lighting,using Internet of things technology、power line carrier and wireless communication technology,the three-level network architecture of urban lighting intelligent control system was builtd,consisting of server, concentrators and controllers.It was realized interconnecting of controllers, concentrators, and monitor server terminal, and connecting to the Internet via DTU, each controller terminal access to the Internet through a unique ID. The system realized intelligent control and scientific management of urban lighting, using monitoring software and databases, GIS, etc., installed in the PC server.It is one of the actual applications of the internet of things to energy conservation and creating the the new smart city.