An electric energy meter verification system is used for performing on-site verification on an electric energy meter. The electric energy meter verification system comprises a thermostat, a harmonic power source, a standard electric energy meter, an error measuring device and a data processing device, wherein the thermostat is internally provided with a space for accommodating the electric energy meter and has a temperature regulation function; the harmonic power source is arranged in the thermostat, connected with the electric energy meter and used for outputting a preset load to the electric energy meter; the standard electric energy meter is arranged in the thermostat and used for receiving the preset load and generating standard electric energy signals; the error measuring device is arranged in the thermostat and used for calculating error values according to standard electric energy signals and pulse signals output by the verified electric energy meter; and the data processing device is connected with the error measuring device and used for obtaining verification data according to error value calculation, sending the verification data out and receiving judgment results of the to-be-verified electric energy meter. According to the technical scheme, the verification system can perform verification on the electric energy meter under the temperature conditions meeting verification regulations, and verification results are accurate and authoritative.