A wire recycling method for suppressing a wire which needs to be stored for a long time. A wire harness manufacturing apparatus manufactures a wire harness. The step (S1) is coloration of a specified wire coming in stock after use for a specified application by coloration in a less−frequently used first color. The step (S2) is attachment of a terminal fitting after a part of the sheath section is removed by cutting the wire and specified wire to a required length. The step (S3) is connection of wire with wire and specified wire with specified wire. The step (S4) is insertion of the terminal fitting into a connector housing.
