Method for drawing or penetrating rotor of power generator for nuclear power plant

The invention relates to a method for drawing or penetrating a rotor of a power generator for a nuclear power plant. The method includes looping a steel wire rope on a fixed pulley, connecting two ends of the steel wire rope to a rotor exterior end drawing tool and a crane respectively, and finally completing drawing or penetrating of the rotor by hoisting of the crane. Compared with the prior art, the method has the advantages that labor is saved, labor intensity is reduced, work efficiency is improved, the rotor runs stably, safely and reliably, and can be penetrated without limitation of operation of a low-pressure cylinder of a turbine, the method has wide application range and the like.