A kind of biological authentication method and terminal

A kind of biological authentication method and terminal, the biological authentication method include：Obtain the operational motion input by user for application and biometric authentication information input by user；Biological identification rank of the inquiry for the operational motion of application；Obtain the corresponding certification threshold value of the biological identification rank；The biometric authentication information that the user of biometric authentication information input by user and storage registers is subjected to matching operation, obtains matching result；By the matching result to be authenticated operating compared with certification threshold value.The embodiment of the present invention can determine the operational motion of different biological identification ranks different certification threshold values, to balance the relation of the security of biological identification operation and convenience.The embodiment of the present invention also provides another biological authentication method, can intelligently obtain the operational motion input by user for application according to current state information, further increasing the convenience of terminal operation.