Edge protection device for building construction

The utility model relates to the technical field of buildings, and discloses a building construction edge protection device which comprises a base, the base is of a rectangular structure, two three-quarter circular grooves are formed in the top of the base, two outer cylinders are fixedly installed in the three-quarter circular grooves in the base, sleeve columns are movably installed in the outer cylinders, and the sleeve columns are fixedly installed in the two outer cylinders. A screen frame is movably installed between the two sleeve columns, a protective screen is fixedly installed in the screen frame, the screen frame is pressed towards the position between the two outer barrels, clamping blocks are bounced into clamping holes under the elastic force of springs, the sleeve columns enter the outer barrels, two installing blocks on the outer walls of the sleeve columns enter two connecting grooves, the two sleeve columns are rotated clockwise, and the protective screen is fixedly installed on the screen f