Abstract: A sleeve protector for wires, includes: a hollow cover which has a slit formed along the center line of the bottom thereof in order to cover a wire with the cover by opening the cover in the opposite directions and then placing the cover on the wire; a pair of hook-shaped jaws which protrude longitudinally from the lower inner circumferential surface of the cover along the opposite sides of the slit, respectively; a fastener which is formed to fasten the cover by being fitted onto the pair of jaws in order to maintain the slit in a closed state after the wire is covered with the cover, and has a tab integrated therewith, the tab being formed along the center line of the fastener and exposed out of the cover through the slit; and a pair of guards which are integrated with the cover.