Based on LabVIEW software platform to develop a high-voltage circuit breaker operating mechanism status evaluation system, through institutions opening/closing coil current waveform curve of vertical and horizontal comparison of comprehensive to assessment the status of the operating mechanism. Example analysis shows that the system can evaluate the institutions electromagnetic system and mechanism body and the auxiliary switch status, early detection of defects and faults hidden operating mechanism for timely processing, thereby improving the operational reliability of the high voltage circuit breaker.