The invention discloses a windproof and horizontal displacement resistant steel column joint of a staggered telescopic joint type curtain wall and a processing method thereof. The windproof and horizontal displacement resistant steel column joint of the staggered telescopic joint type curtain wall comprises a teflon board, limiting steel plates, a tension resisting steel plate, a windproof column and a quadrate pipe; the telfon board is arranged at the upper part of a horizontal square pipe on a roof; the limiting steel plates are arranged at two ends of the teflon board; the tension resisting steel plate is welded at the upper part of the teflon board; the windproof column is arranged in a telescopic joint staggering area of the curtain wall; the quadrate pipe is horizontally arranged between two joints. According to the windproof and horizontal displacement resistant steel column joint of the staggered telescopic joint type curtain wall, teflon plate through which joints can slide is arranged at the upper part of the horizontal quadrate pipe on the roof, and therefore, the structural deformation of different layers can be removed, and thus the curtain wall system can be prevented from being broken due to non-uniform deformation can be effectively prevented; the joints connected between the windproof column and a roof steel structure are connected through rigid connecting rods; meanwhile, the quadrate pipe is horizontally arranged between the two joints, so that the displacement can be synchronously performed, and as a result, non-uniform deformation can be effectively prevented.