A harness wiring structure includes a first link that has a first fixing member, a second link that has a second fixing member, and a shaft portion that swingably connects the first link to the second link. When the first link and the second link are extended to each other, a wire harness is wired in a straight line so as to pass above the shaft portion and is fixed to the first link and the second link by the first fixing member and the second fixing member respectively.