To eliminate a protector for housing and protection, whose installing, setting, connecting, and the like are troublesome, and prevent the squashing of a wiring harness such as a wire breaking surely, and furthermore, facilitate the handling and simplify and facilitate the work.

This wiring structure is related to the wiring structure of a wiring harness 6 on the floor 1 of an automobile or the like. As the wiring harness 6, a flat wire type structure formed by providing conductors 8 almost flat in an insulator 7 of a resin or the like which is of a specific thickness, flat, and flexible, is used, and the form of the whole body is made flat. Such a flat wire type of wiring harness 6 is adhered integrally to the lower surface of a floor mat 3 or a carpet by an adhesive 9.