Lifting method suitable for being used in narrow space

The invention discloses a lifting method suitable for being used in a narrow space. The method comprises the following steps: (1) erecting a holding pole in the narrow space, respectively fixing the upper and lower ends of the holding pole on structures in a lifting space, arranging a lifting cantilever crane which is rotationally connected with the holding pole on one side of the holding pole, and obliquely arranging the lifting cantilever crane; and (2) mounting hoisting equipment on the top of the lifting cantilever crane, lifting a heavy object by adopting the hoisting equipment, and conveying the heavy object along an annular route by adopting the lifting cantilever crane. The safety and the reliability of the lifting operation can be guaranteed, the annular transport of the heavy object can be conveniently realized, the annular lifting and the in-place transport of the heavy object in the narrow space are realized, the requirements on the transport ground and the transport space are low, and the applica