The utility model discloses an electric automobile energy-saving and benefit-increasing evaluation and supervision system under an intelligent electrical network, which belongs to the electric power system automation field, mainly comprising an energy-saving and benefit-increasing database, an intelligent ammeter, a background evaluation and supervision system, a personal identification device and a bidirectional intelligent control device. The bidirectional intelligent control device is connected with the intelligent ammeter through an electric power line; the background evaluation and supervision system is respectively connected with the intelligent ammeter, the bidirectional intelligent control device and the personal identification device through communication lines; the energy-saving and benefit-increasing database is connected with the background evaluation and supervision system through the Internet of things by a communication line; the intelligent ammeter is connected to the intelligent electrical network through an electric power line; the background evaluation and supervision system is connected to the Internet of things through a communication line; the bidirectional intelligent control device is connected to the storage battery of an electric automobile or the energy-dissipating device of an electric automobile charging station through an electric power line. In the utility model, the optimized electric consumption mode of the intelligent electrical network is realized.