The smart energy gateway adopts the concept of integrated design to establish a multi-meter data communication link for electricity meters, water meters and gas meters, so as to realize the smart energy management scheme. A direct communication acquisition link is established between the legal measurement equipment and the main station of the measurement management system, which solves the problem of the same network transmission of electricity, water and gas meter data, improves the efficiency of data transmission and avoids the repeated construction of the network.Research on the application of smart energy gateway technology in energy management system is conducive to comprehensive energy management and smart management, as well as the application of interactive demand.