The invention provides a radio frequency radiation disturbance rejection degree test apparatus and system. The radio frequency radiation disturbance rejection degree test apparatus and system are used for testing the disturbance rejection degree of a tested electric energy meter. The radio frequency disturbance rejection degree test apparatus includes a signal source, a standard source and a standard meter; the standard source, the standard meter and the tested electric energy meter are connected with one another, wherein the tested electric energy meter is arranged in an anechoic chamber, and the signal source, the measured electric energy meter and the standard meter are connected with external control equipment through communication interfaces; the signal source receives external control instructions through the communication interface and applies electromagnetic interference signals of different frequencies to the tested electric energy meter; and measurement data of the standard meter and actually-measured data of the tested electric energy meter are transmitted to the external control equipment through the communication interfaces, so that a radio frequency radiation disturbance rejection degree test can be carried out. Error testing is performed on each step in a test process, and an electric energy meter error test in an electromagnetic field radiation disturbance process can be realized; and after the test, the external control equipment can generate error sensitive point curves for intelligent electric energy meters, and therefore, analysis on the performance of different intelligent electric energy meters can be realized.