Automatic assembly line verification system for three-phase electric energy meter

The invention relates to a three-phase electric energy meter automatic assembly line verification system which comprises a processing host, a power source, a main standard meter, a comparison standard electric energy meter, a main error instrument, a standard clock, an error instrument unit, a communication module, a serial port server and a carrier communication module. The processing host is respectively connected with the power source, the comparison standard electric energy meter and the serial port server, the power source is respectively connected with the error instrument, the main standard electric energy meter and the comparison standard electric energy meter, the main standard electric energy meter is also connected with the error instrument, the error instrument unit is respectively connected with the error instrument and the standard clock, and the error instrument unit comprises a plurality of sub error instruments which are mutually connected. Each sub-error instrument is used for connecting a c