The invention discloses a biological characteristic recognition-based identity card verification method and system. The method includes the following steps that: acquiring the information of an identity card; recognizing the information of the identity card; carrying out blacklisted identity card verification; acquiring biological characteristic information; carrying out blacklisted biological characteristic verification; carrying out biological characteristic recognition; and updating basic information in a basic information storage module. The information of the identity card itself is verified, so that the identity card itself can be a valid identity card, and therefore, the counterfeiting of the identity card can be prevented; the information of the identity card is compared with blacklisted identity cards, the biological characteristic information card of the holder of the identity card are compared with that of blacklisted people, so that the holder of the identity card can be judged, and therefore, a dangerous person can be prevented from being mixed himself or herself into ordinary people, and the safety of coming and going people can be improved; grading setting is adopted when the information of the identity card is compared with the basic information, and therefore, comparison rate can be improved; and the basic information of people is updated, so that the time interval of the acquired biological characteristic information of the holder of the identity card and the basic information of the people can be shortened, and the accuracy of biological recognition can be improved.