The invention provides a humidity stepping strengthening test method and system for an intelligent electric energy meter, and belongs to the technical field of reliability tests. The method comprisesthe steps of determining a humidity range used for carrying out a strengthening test on the to-be-tested intelligent electric energy meter; 1.1, carrying out a pre-test on the to-be-tested intelligentelectric energy meter in a test box, and determining an initial value of each parameter in a plurality of parameters; 1.2, determining that the to-be-tested intelligent electric energy meter within apredetermined time, carrying out the strengthening test on the to-be-tested intelligent electric energy meter for 1.5h according to test items, and obtaining a current value of each parameter; and 1.3, judging whether a difference value between the current value and the initial value of any parameter meets a stop criterion or not, and when the stop criterion is not met, RH is less than 85% and RHis equal to RH + 10% or RH is greater than 85% and RH is equal to RH + 5%, and performing the step 1.1. The test item results of the intelligent electric energy meter under the combinations of different step lengths are obtained, so that the limit working level of the temperature and the humidity of the intelligent electric energy meter can be more accurately determined.