Whole-network unified identity authentication method and system based on biological feature recognition

The invention provides a whole-network unified identity authentication method and system based on biological feature recognition, and the method comprises the steps: enabling an authenticated end to collect the biological features of a user, and sending an authentication request to the authentication end; the authenticated end sends the first collection information to a local trust server of the authenticated end; if the local trust server of the authenticated terminal inquires the user ID identification information, comparing whether the to-be-authenticated biological characteristic information of the user is consistent with the user authentication biological characteristic information or not, obtaining a comparison result and sending the comparison result to the authentication terminal;if the local trust server of the authenticated terminal does not inquire the user ID identification information; if yes, inquiring user ID identification information from the trust anchor subsystem, sending the user authentic