WIRE HARNESS ROUTING DEVICE

A wire harness routing device has a wire harness, one end of which is connected to a slider that is slidably attached to a rail and the other end of which is drawn out from the rail, a folding guide part that curves the wire harness that is drawn out from the rail and folds it in the direction along the rail, and an accommodation part that has a bottom wall and a side wall that rises up from the side edges of the bottom wall. The wire harness has a straight line-shaped linear part that is disposed along the rail, and a curved part that is further folded back to conform to the opposed side of the folding guide part of the linear part, a slidable holding member, and a separation guide part that separates the linear part from the side wall is provided on the slidable holding member.