The utility model relates to a telescopic
steel bar binding platform attached to a
climbing formwork, which comprises the
climbing formwork, a horizontally arranged main cross beam is mounted on the
climbing formwork, a drawable overhanging cross beam is mounted in the main cross beam, a steel springboard is laid on the overhanging cross beam, and the steel springboard is arranged on the climbing formwork. A detachable
protection mechanism used for preventing workers from falling off is installed at the end, away from the main cross beam, of the
cantilever cross beam. The
steel bar binding platform has the advantages that the main cross beam is installed on the climbing formwork, the
cantilever cross beam capable of being pulled out is installed in the main cross beam, when the climbing formwork climbs, the
cantilever cross beam is contracted into the main cross beam, when the
steel bar binding platform needs to be built, the cantilever cross beam is pulled out of the main cross beam, and the steel springboard is flatly laid on the cantilever cross beam. Due to the fact that the supporting object of the telescopic steel bar binding platform is the climbing formwork, construction does not need to be carried out after concrete of the core tube
floor slab of the layer reaches the use strength after pouring, the position of a reserved hole in the core tube
floor slab of the layer does not need to be considered either, and the cantilever beams and the steel springboards are easy and convenient to install and operate.