The present disclosure provides an intelligent lock, a method for operating the same, and an intelligent safe deposit box. The intelligent lock comprises: a mechanical lock body; an identity recognition module configured to acquire identity information of a user; a password input module configured to acquire a password input by the user; a controller electrically connected to the identity recognition module and the password input module, and configured to: determine whether the user is a legitimate user according to the identity information, determine whether the password is consistent with a reference unlocking password, and control a state of the mechanical lock body, wherein the controller controls the mechanical lock body to be in an unlocked state only on condition that it is determined that the user is a legitimate user and the password is consistent with the reference unlocking password.