The invention discloses a method and system for transmitting an electric energy quantity value based on a standard electric energy meter group, and belongs to the field of electric energy measurement.The method for transmitting the electric energy quantity value based on the standard electric energy meter group comprises the steps that the standard electric energy meter group is established, anda standard electric energy meter with the minimum uncertainty is selected as a reference electric energy meter r; the error values of standard electric energy meters and a meter to be measured are obtained; the predicted value of the difference value of the i standard meter relative to the standard electric energy meter group at the (t+tau) moment is predicted; the weights omega of the standard meters are determined; the error value of the reference meter r and the standard electric energy meter group at the (t+tau) moment is calculated; the error value of the meter to be measured relative to the standard electric energy meter group is determined according to the weights omega; and the calculated values of the difference values the standard meters relative to the standard electric energy meter group at the (t+tau) moment are determined. According to the established standard electric energy meter group, the accuracy of the standard electric energy meter group is better than one in ten thousand, the standard electric energy meter group measures the electric energy and comparison with the meter to be measured is carried out, value transmitting to the meter to be tested is realized, the easy-to-implement method for transmitting the quantity value is provided to a laboratory tester, and the accuracy of a measurement standard device can be increased to five in hundred thousand.