Safety fence for building construction

The safety fence for building construction comprises a fence body, a guardrail is fixedly connected to the top of the fence body, operation boxes are fixedly connected to the two sides of the bottom of the fence body, fixing plates are fixedly connected to the two sides of each operation box, electric telescopic rods are fixedly installed on the tops of the fixing plates, and the electric telescopic rods are fixedly connected to the top of the fence body. The output end of the electric telescopic rod is fixedly connected with a push block, the right side of the push block is movably connected with a third movable shaft, and the right side of the third movable shaft is movably connected with a second movable shaft. Through the arrangement of the electric telescopic rod, the fixing plate, the guardrail, the push block, the connecting box, universal wheels, a sliding rod, a fixing block, a limiting spring, a connecting rod, a first movable shaft, a second movable shaft and a third movable shaft, the effect of fa