The invention discloses a method for determining a demand side resource demand response benefit value, the method is executed in computing equipment, a to-be-selected scheme set and an evaluation index set of demand response are stored in the computing equipment, and the method comprises the following steps: acquiring original data of a microgrid, and calculating a result value of the demand response under each index of each scheme; carrying out dimensionless conversion on the result value, establishing a normalized matrix, and calculating the central point value of each index in all schemes and the variation degree of each index; normalizing the variation degree to obtain a second weight of each index, and combining the first weight of the index to obtain a combined weight of each index;and calculating the index vector representation of each scheme and the index vector representations of the positive and negative ideal schemes of the demand response, and calculating the comprehensivecloseness of each scheme to the positive ideal scheme in combination with the combined weight so as to obtain the comprehensive benefit value of each scheme. The invention further discloses a corresponding device for determining the demand side resource demand response benefit value and computing equipment.