The invention discloses a double-station production steel belt rounding and welding flanging machine, and particularly relates to the technical field of steel belt processing. The double-station production steel belt rounding and welding flanging machine comprises a machine table, a rolling mechanism, a cutting mechanism, a welding mechanism and a flanging mechanism; the rolling mechanism, the cutting mechanism, the welding mechanism and the flanging mechanism are sequentially and fixedly arranged on one side of the machine table from right to left; the welding mechanism comprises a fixed claw, a movable claw and a laser welding head; the fixed claw is welded on the machine table; connecting pieces are positioned on two sides of the fixed claw and fixedly connected with the fixed claw; theconnecting pieces are hinged with the movable claw; and the laser welding head is positioned below the fixed claw. According to the double-station production steel belt rounding and welding flangingmachine, the laser welding head and a flanging wheel are arranged, the two ends of steel belt are extruded, aligned and fixed by the movable claw, subsequent laser welding is facilitated, a driving wheel drives steel belt ring to rotate, the flanging wheel extrudes and flanges the side edge of the steel belt, the automation degree is high, after laser welding, a product welding seam is smooth, theworking procedure is reduced, and the overall production cost is reduced.