Steel structure hoisting linear positioning device

The utility model discloses a steel structure hoisting linear positioning device, which belongs to the technical field of steel structure construction, and comprises a temporary support, a steel cross beam is fixed on the temporary support along the transverse direction of a steel structure, a temporary buttress and two pushing supports are fixed on the steel cross beam, the number of the pushing supports is two, and the pushing supports are respectively arranged at two ends of the steel cross beam. And a jack is placed on the steel cross beam. The steel box girder hoisting linear control device can be used as an auxiliary tool for steel box girder hoisting linear control, straightness and unification of steel box girder hoisting linear are achieved, construction quality of steel box girder hoisting is improved, construction efficiency is improved, and construction cost is reduced. And compared with an existing linear control method, the construction efficiency is improved, and meanwhile the linear precision