The utility model provides an energy management system which comprises a first intelligent electric meter, a bus, an energy service terminal, a microgrid centralized manager, second intelligent electric meters and a data concentrator, wherein the bus comprises a commercial power input end, a new energy power input end and an electric equipment access end; the first intelligent electric meter is connected with a commercial power transformer, the commercial power input end and the energy service terminal; the microgrid centralized manager is connected with a new energy power generation assembly, the new energy power input end and the energy service terminal; the second intelligent electric meters are installed in series between the electric equipment access end and each electric equipment; and the data concentrator is connected with the energy service terminal and the second intelligent electric meters. By using the energy management system of the utility model, real-time two-way interaction of information in smart power grids can be realized, and power dispatching can be effectively forecasted and performed according to network loads.