A wire harness includes: a wire routing material including an insulation covering portion having an insulation property and a conductor having conductivity and covered with. the insulation covering portion; a water-stopping terminal disposed at at least one end of the wire routing material and having a water-stopping property; and an internal pressure adjuster including a vent disposed at a middle position of the wire routing material so as to bring the inside and the outside of the insulation covering portion into communication, and a moisture-permeable waterproof sheet covering the vent. As a result, the wire harness can appropriately achieve the water-stopping property in the entire wire harness.