The iventnion discloses a circuit breaker test and repair auxiliary device, which at least comprises a circuit breaker, a test device, a transfer device and a detection device, wherein the transfer device comprises a fast plug terminal and a secondary plug; and the detection device comprises a plurality of indication lamps, a switch signal loop, a hopping monitoring loop and a characteristic testdevice. The circuit breaker test and repair auxiliary device disclosed in the invention has the advantages of being safe, reliable and high in accuracy, and being capable of solving a contact surfaceoxidation problem.