Method and device for evaluating operation reliability of power equipment

The invention provides a power equipment operation reliability evaluation method, which comprises the following steps: acquiring a plurality of equipment part lists, and calling historical operation data of equipment parts in the lists based on the equipment part lists; according to the normal operation data and the operation fault data, calculating a sub-fault rate of the component, and according to influence parameters of the equipment component corresponding to the sub-fault rate in the equipment, determining a fault analysis participation degree; fault probabilities and fault category probabilities are calculated based on the multiple fault analysis participation degrees and the sub-fault rates, and fault categories corresponding to the fault category probabilities are set to be negligible items and non-negligible items; and according to the negligible item and the non-negligible item, the fault category is scored, and according to the fault category score, a fault probability is combined to obtain an equ