The invention discloses an examination paper secrecy system capable of synchronously controlling a physical identification password and a biological characteristic identification password. The system is mainly composed of a physical identification password sampling module, a biological characteristic identification password sampling module, a synchronization identification processing module, a password data processing centre and a multi-mode dominant synchronization identification coded lock module. The system of the invention greatly increases the difficulty that the password is broken by using a united mode of physical recognition and biometric feature recognition, and a manner that one person simultaneously recognizes the password. Simultaneously, the system enables an illegal person who does not know and is not similar the operation program hard or not to open a secrecy cabinet by synchronizing the control program; then a leading synchronization recognition mode enable three leading passwords to disorder the original password after being matched with a reference code so as to improve the difficulty of breaking the password, and the password is carried by a user so as to used on site, so the password is hard to forge or to be stolen so as to enable the secret password of a examination paper secrecy cabinet to have stability and anti-falsification.