The invention provides a calibration system of a digital quantity input type electric energy meter. The problem of calibration of a novel digital quantity input type electric energy meter is solved. The calibration system of the digital quantity input type electric energy meter comprises an analog power source, high-accuracy PT and CT, a high-accuracy digital voltmeter, an A/D sampling module, a protocol generation module, a management module, an analog standard meter, an electric energy meter to be measured, an error counter and a control computer; the control computer controls the analog power source to output an analog voltage and current signal, and one path of the analog signal is measured by the analog standard meter and used for calculating the error of the meter to be measured; after the other path is converted by the high-accuracy PT and CT and processed by the AD sampling module and the protocol generation module, measurement data which conform to IEC61850 standard are generated and transmitted to the meter to be measured by an optical fiber or a twisted-pair, the meter to be measured receives and analyzes a data frame, the electric quantity is calculated, and the pulse of the electric quantity is output and used for calculating the error of the analog standard meter. The invention can calibrate an indoor digital quantity input type multi-functional electric energy meter which conforms to the protocols of DL/T860-9-1/2 and IEC61850-9-1/2LE, and a calibration result can trace to a national standard.