Hoisting assembly and hoisting method for superstructure block of ship

The invention relates to the technical field of hoisting assemblies, and particularly discloses a hoisting assembly for a ship superstructure block and a hoisting method.The hoisting assembly comprises a base and a stand column, and the stand column is fixedly arranged at the top end of the base; the cantilever shaft is fixedly arranged in the middle of the top end of the stand column. The cantilever is rotationally connected with one end of the cantilever shaft through a bearing; the I-shaped steel is fixedly arranged at the bottom end of the cantilever in the left-right direction; the electric hoist is arranged at the bottom end of the I-shaped steel; the transverse limiting mechanism is arranged at the bottom end of the cantilever; the rotary limiting mechanism is arranged on one side of the top end of the cantilever; and the lifting hook is arranged at the bottom end of the electric hoist. By arranging the rotation limiting mechanism, a limiting mechanism can be arranged above the cantilever shaft, the po