To readily and individually recover a vinyl tape, facilitate the classified recovery of various used parts or materials of different kinds and obtain a self-tacky vinyl tape having raised recyclability.

This self-tacky vinyl tape is formed of a tape substrate comprising a resin composition prepared by compounding a vinyl chloride-vinyl acetate copolymer with ≥5 wt.% vinyl acetate content in an amount of 5-20 pts.wt. based on 100 pts.wt. polyvinyl chloride resin therewith. Plural electric wires 1 are bundled and the outer peripheral part at a prescribed position of the electric wires 1 in the bundled state is then successively overlap-wound with a vinyl tape 2 to thereby keep the vinyl tape 2 in a mutually bonded state by the self-tack of the vinyl tape 2 itself. As a result, a wire harness 3 in which the plural electric wires 1 are bundled can be formed.