The construction technology of surface crane and safety platform is mainly for steel cable-stayed bridge. It is a kind of cantilever assembly construction technology, because the steel main girder of the cable-stayed bridge, whether it is an open section box girder or a closed section box girder, is finished in the factory, and the joint connection type is mostly high-strength bolts or welding, the bridge floor crane can meet the needs of the steel beam spliced in the lifting part, and the multiple tensioning of the structure's cable-stayed cable can ensure that the construction line meets the requirements of the design and formation. In the traditional hanging basket, only the construction platform is left to meet the requirements of construction operation, and it is often designed as a light safety platform, which is mostly fixed on the installed beam bottom track, so that the construction scheme of the bridge floor crane and the safety platform are realized. Such as the superimposed beam type Nanpu Bridge, Yangpu Bridge, hybrid bridge Xupu Bridge and other Bridges are so.