The invention discloses an optimized dispatching method for energy balancing of a smart distribution network. The method comprises the steps of determining peak and valley time durations of operation of a power distribution network according to results of characteristic analysis and load prediction carried out according to accessed distributed power sources, microgrids and loads; determining daily output curves and power plans of adjustable loads of the distributed power sources and the microgrids, and uniformly deploying power sources, power distribution networks, load operation states, namely, maximizing output through renewable energy sources at electricity consumption peak time under grid-connected operation of the distributed power sources; connecting remaining electricity to the network under the condition that load needs are met, charging an energy storage system at electricity consumption valley time, and power supply is carried out according to optimized dispatching results; electricity utilization is not limited at the electricity consumption valley time, and users are guided to consume electricity through a peak-valley electricity pricing mechanism. According to the optimized dispatching method for the energy balancing of the smart distribution network, under the conditions of energy conservation and emission reduction, the integrated optimizing method meeting multi-stage energy balance is established, on the basis of guaranteeing safe and reliable power supply of the smart distribution network, the proportion of digested renewable energy sources is maximized, the economy of the power distribution networks is improved, and short-term energy balance is achieved.