The invention relates to an intelligent electric energy metering device, which comprises a PLC control module, an inverter, a voltage/current acquisition module, a circuit charging control module and an electric meter, and is characterized in that the voltage/current acquisition module is connected between the PLC control module and the inverter; the circuit charging control module comprises a two-way relay, a load resistor and an optocoupler driving module; the two-way relay is connected with the PLC control module through the optocoupler driving module; two output ends of the two-way relay are connected to the external mains supply, and the other two output ends of the two-way relay are connected to the load resistor; the electric meter is connected between the two-way relay and the mains supply; the voltage/current acquisition module acquires voltage/current analog signals and converts the acquired voltage/current analog signals into voltage/current digital signals, and the voltage/current digital signals are inputted into the PLC control module to perform judgment on whether input of the mains supply is satisfied or not; and if so, the PLC control module controls the two output ports, which are connected with the mains supply, of the two-way relay to be conducted. The intelligent electric energy metering device converts excess energy into electric energy and applies the converted electric energy to the mains supply, so that the energy utilization ratio is improved.