In recent years, operational risk in China’s banking industry becomes increasingly apparent, the essential reason for which lies in the drawbacks existing in current financial institution, not only in an imperfect internal control mechanism.

Therefore, actions should be taken as follows: to consummate financial legislation and amplify financial legal system; to amplify internal control mechanism on the basis of prevention in conformity of law; to persist in governing bank in accordance with law and severe financial supervision; to strengthen financial legal performance and strictly penalize financial crimes, etc.

Secondly we must improve the internal mechanism of commercial banks and make great efforts to activate the existent credit quantity, optimize the increasing quantity, adjust the business structure and heighten the capital quality.

This essay mainly focuses on an automatic testing system which is based on an built-in digital control system indicating the given signals and feed back signals by means of digital numbers.