Self-checking electronic energy meter and self-checking method thereof

The invention discloses a self-checking electronic energy meter and a self-checking method thereof. The self-checking electronic energy meter can realize self-check and meanwhile can be used for accurately metering electric energy of an electric power system. The self-checking electronic energy meter comprises a metering circuit, a microprocessor, a MTP (multi-time programmable) storage unit, a display unit, a power supply and a meter calibration output terminal, wherein, the metering circuit comprises a sampling circuit, an A/D (analog-to-digital) converting circuit and a metering chip. By adopting the technical scheme, low-cost meter calibration can be realized, thus improving the efficiency; the safety for meter calibration parameters is improved, thus enhancing the reliability for errors of the electronic energy meter; and the cost is lowered, and low-carbon environmental protection can be realized.