The application discloses an electric power device fault information obtaining device comprising a fault information obtaining unit, a data collection unit, a data processing unit, a CAN bus, a CAN interface and a central processor, wherein the fault information obtaining unit is connected with the data collection unit, the data collection unit is connected with the data processing unit, the dataprocessing unit is connected with the CAN bus which is in connection with the CAN interface, the CAN interface is connected with the central processor, fault information of an electric power device can be obtained via the fault information obtaining unit, the fault information is collected via the data collection unit and sent out, a fault information file table is obtained after the fault information is processed via the data processing unit, and a processed file table is transmitted to the central processor via the CAN bus and the CAN interface. Electric power fault occurrence positions canbe accurately recorded after the data is obtained and processed; convenient tracking, monitoring and timely processing can be realized; efficiency of maintenance work can be improved.