Construction method for high-altitude long-span cantilever formwork

The invention discloses a construction method for a high-altitude long-span cantilever formwork. The construction method comprises the following steps: 1) assembling a cantilever formwork; 2) performing floor surveying, lining and arranging an embedded part; 3) hanging the cantilever formwork; 4) supporting and arranging a template; 5) performing a load test. According to the construction method provided by the invention, the cantilever formwork is assembled in advance, and then the cantilever formwork is hung for mounting, the construction technique is simplified and the rigidity of the cantilever formwork can meet the construction requirement, so that the construction period is greatly shortened, the construction cost is reduced and the cantilever formwork is safer and more stable.