Anti-falling device for building construction

The invention relates to the technical field of building construction, and provides an anti-falling device for building construction, which comprises a lap joint platform provided with a supporting part and a bearing part, the supporting part is L-shaped, the bearing part is arranged on the supporting part, the fixed pressing table is L-shaped and arranged on the supporting part, and the fixed pressing table and the supporting part are matched to form a U-shaped clamping gap. The lower supporting table is located in the U-shaped clamping gap, the first screws are arranged on the fixed pressing table and the supporting part in a penetrating mode, one ends of the first screws are rotationally arranged on the supporting part through bearings, threaded areas of the first screws are in threaded connection with the fixed pressing table, and after the first screws rotate, the fixed pressing table and the supporting part clamp or loosen the lower supporting table and the first anti-falling piece. The two ends are arr