1. A method for authenticating liveness face, comprising: generating, by one or more processors, a sequence of action instructions randomly; determining, by the one or more processors, a success of the authentication of the liveness face when face actions are determined to be matched with the sequence of action instructions sequentially, and with respect to each action instruction except for one which has a lowest order in the sequence of action instructions, issuing, by the one or more processors, a next action instruction only when a face action is determined to be matched with the action instruction and there is the next action instruction to be issued.