The invention relates to a method and a system for human face comparison identity identification, which comprises the following steps: searching human face data stored in a database and an IC card by identified personnel through identity marks of the identified personnel; obtaining identification human face data of the identified personnel through image picking, photo taking and scanning; using a computer human face identification system; and carrying out coidentity comparison on the originally stored human face data and the later obtained identification human face data for realizing the identity identification. The system comprises identity mark, identity mark carrier and corresponding identifying and reading units, units for obtaining the identification human face data of identified personnel and units for storing, processing and recording the human face data. The invention can be used for industries such as banks, public security, telecommunications, medical insurance, civil aviation, education, military and the like, can effectively avoid the manual careless omission, and can automatically, conveniently efficiently and accurately realize the digital identity identification and passageway control and the like.