The invention relates to a trust management system combining certificate and prestige characteristics, comprises a prestige subsystem, a certificate subsystem and a trust integrated subsystem. The prestige subsystem counts a trust level based on prestige and prestige information assisting the certificate subsystem to train according to the grading/evaluation of a user. The certificate subsystem outputs the trust level based on a certificate according to the input certificate and the prestige information output by the prestige subsystem, moreover, the certificate subsystem can be divided into a training module, a parameter library and a certificate trust counting module, wherein the training module uses the prestige information and the certificate as input, a certificate trust counting parameter is generated by training and stored in the parameter library, and the certificate trust counting module converts the input certificate into the trust level based on the certificate to be output by the certificate trust counting parameter in the parameter library. The trust integrated subsystem combines the trust level based on the prestige and the trust level based on the certificate, and the obtained integrated trust level is used as the output of the whole system.