A harness-integrated slide hinge is provided that connects between a plurality of casings having circuits therein while allowing the casings to move relatively. The harness-integrated slide hinge includes: a first sliding plate fitted to the one casing; a second sliding plate fitted to the other casing; a sliding mechanism that connects between the first sliding plate and the second sliding plate while allowing them to move relatively; and a harness that has a plurality of wirings, and connection sections provided on both ends of these wirings, and that is routed between the first sliding plate and the second sliding plate, wherein a wiring lamination section having a plurality of the wirings laminated therein is bent in a U-shape and accommodated in a space section between the first sliding plate and the second sliding plate.