A method for safely equipotentially transferring live workers of an AC power transmission line includes the steps that after an equipotential work body is carried to a to-be-overhauled position of theline by a helicopter, the equipotential work body makes contact with an upper-phase conductor to form equipotential for carrying out equipotential work; after the equipotential work body performs theequipotential work on the upper-phase conductor, a live worker spreads an insulated rope ladder from the upper-phase conductor to a lower-layer conductor of the same circuit, and shifts from the upper-phase conductor to a middle-phase conductor of the circuit in which the upper-phase conductor is located or a lower-phase conductor of the circuit in which the upper-phase conductor is located alongthe insulated rope ladder so as to perform equipotential work on the middle-phase conductor or the lower-phase conductor. The insulate rope ladder is spread along the AC transmission line, the equipotential transfer of the live worker along the insulating rope ladder in the line is realized, and the live worker can carry out the equipotential work on the middle-phase conductor or the lower-phaseconductor, thereby improving the safe and stable operation level of the AC transmission line.