The invention provides a tackle for net weaving in high-voltage power transmission wire construction. The tackle includes a tackle main body frame, an upper pulley, a lower pulley and a front connecting ring; the upper pulley is fixed to the upper half part of the tackle main body frame through a first bearing; the lower pulley is fixed to the lower half part of the tackle main body frame through a second bearing; the axial direction of the first bearing is parallel to the axial direction of the second bearing; a gap formed between the upper pulley and the lower pulley is used for accommodating a supporting rope; the front connecting ring is fixedly welded to the first bearing; and the front connecting ring is used for connecting a traction rope for net weaving. According to the tackle of the invention, the two rolling pulleys are adopted, so that friction between the rolling pulleys and the rope can be decreased; the two pulleys are arranged sequentially along a vertical direction, and the gap is formed between the upper pulley and the lower pulley, and the supporting rope can be arranged in the gap, and therefore, the supporting rope will not slip away from the tackle; the net traction rope is arranged in the front connecting ring, and therefore, the direction of a force borne by an O-shaped lock is consistent with the direction of the supporting rope, and the tackle will not rotate and is smooth when pulling the net traction rope.