The invention discloses a winder for binding a cable binding wire. The winder is applicable to winding of a cable joint through a power system. The winder comprises a ratchet part and a pawl part corresponding to the ratchet part, wherein the ratchet part comprises a sleeve with a side opening; ratchet teeth are arranged on the outer circumference of the sleeve and are correspondingly sleeved by the pawl part; the pawl part comprises a circular-arc-shaped pawl body which is provided with a long handle and a side opening corresponding to the sleeve and can span over the side opening of the sleeve; at least two pawls matched with the ratchet teeth are arranged on the pawl body. By utilizing the principle of interaction between the ratchet and the pawls, the ratchet can move in a single direction by virtue of the reciprocating motion of the ratchet teeth; when the pawl part is rotated clockwise, the pawls drive the ratchet teeth to move together, and the ratchet teeth drive a wire binding shaft on the sleeve to move; when the pawl part is rotated anticlockwise, the ratchet teeth is not rotated along with the pawl part, and the aim of winding a binding wire of a binding wire shaft on two wire joints can be achieved by moving an insulating handle connected with the pawl part up and down.