Abstract: The protection cover adapted for use in combination with the pull tab of a zipper is mainly made up of a zipper embodiment, a pull tab and an arc shaped guard cover wherein the zipper embodiment is equipped with a guide slider having an upper wing piece and a lower wing piece with a cantilever coupling arm having one end fixed to the front end of the top surface of the upper wing piece. The cantilever coupling arm is connected to the front ring hole of the pull tab with the guard cover registered therewith. The two ends of the arc shaped guard cover are in contact with the surface of the upper wind piece to form a closed space whereby the guard cover separates the cantilever coupling arm from the ring hole of the pull tab so that the movement of the pull tab will not make the same in friction against the cantilever coupling arm, preventing the pull tab from scrubbing damage by the coupling arm or vice versa in operation.