A binding post comprises a binding post body, a binding hole arranged at the binding post body, a pressure line screw hole arranged at the binding post body, and a pressure line screw, wherein the binding hole is communicated with the pressure line screw hole. The binding post is characterized in that the diameter of the pressure line screw hole and the diameter of the pressure line screw which is matched with the pressure line screw hole are equal to or larger than the aperture of the binding hole. The wire core is easy to be completely compressed tight by the pressure line screw. The binding post has easiness and convenience in binding, can fully realize loading quantity of the wire, and suitable for wide popularization and use.