Safety device for high-altitude installation of steel structure workshop

The invention provides a safety device for high-altitude installation of a steel structure workshop. The safety device comprises a fixing steel wire rope and multiple fixing assemblies, the fixing assemblies comprise fixing rods, first clamping blocks, second clamping blocks and inclined supporting rods, the lower ends of the fixing rods are fixedly connected to the first clamping blocks, first clamping grooves are formed in the side walls of the first clamping blocks, one ends of the inclined supporting rods are fixedly connected with the second clamping blocks, the other ends of the inclinedsupporting rods extend out in the directions of the fixing rods and are detachably connected with the side walls of the fixing rods, second clamping grooves are formed in the second clamping blocks,the first clamping grooves and the second clamping grooves are matched with flange plates on the two sides of a steel beam in the width direction respectively, and the fixing steel wire rope is sequentially fixed to the upper