The invention discloses a method used for unlocking using a human body double-characteristic identification module. According to the method, two-stage identification including fingerprint identification and human face identification is adopted; the human body double-characteristic identification module comprises a system main control panel, a high sharpness camera, a fingerprint head, a fingerprint driver board, and a door lock drive board. According to the method, human face identification is adopted, so that safety of locksets is improved, and human face identification can be used for solving a problem caused by unavailable fingerprint identification. Under normal conditions, when an operator is going to unlock a lock, a finger is put on a fingerprint reader for fingerprint identification, when the fingerprint is identified to be right, the face is turned to the camera of the human body double-characteristic identification module, and the camera is used for human face identification, and unlocking of the lock is realized when the face identified to be right. When fingerprint identification is impossible to carry out, human face identification is carried out, and unlocking of the lock is realized when the face identified to be right. The priority of the human face identification is higher than that of fingerprint identification, so that lock protection grade is increased via double biological recognition.