The invention discloses an energy-storing configuration evaluation method based on a microgrid. The method includes the first step of determining an evaluation object, an evaluation scope and equipment constitution and recalling and disposing historical operation data in a power supply system, wherein the evaluation object is the power supply system provided with an energy storing device and a distributed power supply, the second step of determining an evaluation target of the system, wherein the evaluation target of the system is the target which needs to be achieved through operation of the energy storing device in the power supply system, is the target of the energy storing device in the technical improvement of the whole power supply system and is the economic target of an energy storing system itself, and the third step of determining an evaluation index and carrying out basic index calculation, wherein determining the evaluation index means carrying out integrated performance marking to obtain the evaluation result of energy-storing configuration. The method has the advantage of achieving scientific and reasonable evaluation of the energy-storing configuration.