A method for handling a wind powerplant's rotor hub or to handle a wind powerplant's rotor using a hoist, in particular for erecting a wind powerplant or for assembling or disassembling a rotor to and from such a powerplant, in particular a hub or a rotor being configured by means of one assembly side to the wind powerplant's tower, the hub or rotor being raised or held by the hoist. In the raised state, the hub is tilted by a tilting mechanism acting on it out of the initial, raised position by a predetermined angle of tilting, or the rotor is tilted by a tilting mechanism acting on the rotor blade roots of the rotor through a predetermined angle of tilting. A mechanism to handle a wind powerplant's rotor hub of a wind powerplant's rotor, in particular for assembling or dismantling a rotor to or from its wind powerplant.