The invention discloses a method for evaluating ground potential rise tolerance capability of an intelligent assembly. The method comprises the following steps: 1) setting a normal working threshold level of the intelligent assembly; 2) establishing an equivalent model of the intelligent assembly; 3) adjusting parameters of the equivalent model of the intelligent assembly; and 4) evaluating ground potential rise tolerance capability of the intelligent assembly. For different voltage grades and GIS in different structures, difference of ground potential signals on a housing is larger under the condition of bus charging current switching, so that test cost is high when various ground potential signals are applied to the intelligent assembly one by one; and by applying the equivalent model of the intelligent assembly to simulation analysis, interference signal levels obtained after different actually-measured ground potential signals are applied to the intelligent assembly can be known quickly.