The invention relates to the technical field of high-altitude operation auxiliary devices in the power industry, and provides a movable hanger with a self-locking function for a high-altitude operation lifting device and a use method of the movable hanger, a hook has a locking safety function, and when the hanger is hung on a wire, the hook and a locking rod of the hanger form a
closed space, so that the hanger is prevented from falling off, and the
operation safety is greatly improved; the suspension bracket is connected with the two hooks respectively, so that when high-place operation is carried out, a static
rope for the lifting device and an anti-falling
backup protection
rope for high-place operation personnel are used separately, and the safety and the reliability of the high-place operation are effectively improved; the connecting holes are formed in the lower ends of the two hooks on the hanging frame respectively, when high-place operation is carried out, a static
rope for a lifting device and an anti-falling
backup protection rope for high-place operation personnel can be tied to the connecting holes through one rope head, the use length of the rope only needs to be matched with the height of an
operation point, and the requirement can be met; compared with an operation method of throwing and hanging a traction rope by using an unmanned aerial vehicle, the length of the rope used for operation can be reduced by half.