The invention applies to the technical field of breakers and provides a breaker operating mechanism performance detection device, comprising a high-voltage breaker operating mechanism, a controller, apower source, an electromagnetic damping device and a rubber damping device; an output shaft of the electromagnetic damping device is connected with the high-voltage breaker operating mechanism, andthe other end of the electromagnetic damping device is connected with the rubber damping device; the rubber damping device is fixed relative to a bearing mechanism; the input end of a controller is connected with the high-voltage breaker operating mechanism, and the output end of the controller is connected with the power source; the power source is used for powering the electromagnetic damping device; when the high-voltage breaker operating mechanism engages opening or engages closing, the controller is triggered to output a power supply signal to the power source; the power source powers theelectromagnetic damping device according to the power supply signal; the electromagnetic damping device and the rubber damping device are used for eliminating power which the high-voltage breaker operating mechanism consumes during opening or closing. The breaker operating mechanism performance detection device can simulate the action of a high-voltage breaker to carry out electrical training teaching, and has high safety.