The present invention describes method for implementing believable network system by using believable computational technique. Believable network system described by the method is made up of server and several customer terminal computers. Server is equipped with believable compute chip, mounting believable multitask operating system; customer terminal is equipped with believable compute chip adopting diskless workstation modus. In the process of customer terminal starting, first, proceeding coming from server terminal executes reliability measurement by using believable compute chip to customer terminal hardware etc for assuring whole reliability of customer terminal hardware; in operation process of customer terminal system, all storing resource required visiting (accessing) are monitoring and measurement by server terminal software for assuring whole reliability of customer terminal software and resource. The method can be used for establishing system inner net of business or government etc, for improving safety and reliability of entire network effectively.