System and method for monitoring and registering computer activity

This invention discloses a kind of computer action monitoring recording system and method. The method records the action on the computer, which with digital certificate that comprises several policy articles. The steps comprise: (1) verifying digital certificate; (2) executing a set action that recorded in the computer. The said action is specified by the policy articles. The said system comprises a set of recording program that operated in computer, and a set of processing program that operated in another computer. The system can realize the monitoring and recording of computer action by the said method. The invention utilizes the digital certificate that comprises several policy articles and public key of administrator. It provides the guarantee of trust between 'the computer and computer user whose action is recorded and managed' and 'the administrator which manages the monitoring and recording system.' It also can increase the security of computer information.