WIRE HARNESS ROUTING DEVICE

A wire harness routing device includes: a wire harness with one end fixed to a slider that is slidably arranged with respect to a rail and another end pulled out from the rail ; an excess length accommodating portion that has an entrance into which an excess length portion A of the wire harness pulled out from the rail is introduced and that is configured to spirally wind the excess length portion A and accommodate the excess length portion A therein; and a guide portion that is disposed in the excess length accommodating portion and that is configured to change a direction in which the excess length portion A enters the excess length accommodating portion to an inward direction of the excess length accommodating portion by coming into contact with the excess length portion A.