An electronic apparatus wiring harness is provided that includes: a fixed-side casing and a moving-side casing, the moving-side casing being provided with a moving-side casing base which is rotatably journalled to the fixed-side casing, and a sliding portion which is provided so as to be slidable on a slide surface provided in the moving-side casing base. The circuit of the sliding portion and the circuit of the fixed-side casing are electrically connected together by an electric wire, which is a wiring harness having a flat cable portion having electric wire bodies arranged in parallel and formed in a tape shape having a jacket strip portion in which a number of the electric wire bodies are bundled; the flat cable portion is arranged in a bent manner so as to form a U shape on the slide surface of the moving-side casing base.