WIRING HARNESS AND METHOD OF MANUFACTURING WIRE HARNESS

A wire harness includes: an electrical wire including a core wire and an insulating covering for covering the core wire; and a sheet material in which the electrical wire is disposed on a resin main surface, and a part of the main surface having contact with the electrical wire is welded to the insulating covering of the electrical wire, thereby forming an electrical wire fixing part. A largest thickness dimension in the electrical wire fixing part in the sheet material is formed larger than a thickness dimension in a part of the sheet material where the electrical wire is not disposed.