It is an object of the present invention to provide a technology with which a protective portion with high protective capabilities is provided while avoiding an operation to switch out binding adhesive tape much as possible. A wire harness includes: a wire; and a tape-wrapping protective portion provided in at least a partial region along a longitudinal direction of the wire, the tape-wrapping protective portion including a spiral-wrapping portion in which an adhesive tape is wrapped in a spiral shape around the wire, and in the portion where the spiral-wrapping portion is provided, the adhesive tape being wrapped so as to form more than two layers.