Cantilever climbing device

The utility model belongs to the technical field of building construction, and discloses a cantilever climbing device which comprises an operation platform, a stand column and a climbing frame, and the operation platform is fixedly installed on the lower layer of a first cantilever structure layer; the multiple stand columns are vertically arranged in the same direction, and the two ends of each stand column are detachably connected with the two adjacent cantilever structures. The climbing frame comprises a truss body, a guide supporting system and a power lifting system. The guide supporting system is configured to guide the truss body to move in the length direction of the stand column. The power lifting system can drive the truss body to move up and down between the two adjacent cantilever structures. The overhanging climbing device is attached to the outer vertical face of the overhanging structure and moves up and down between adjacent overhanging structure layers, the wind resistance is high, and the li