A shielded harness is simply constructed such that covered wires are fitted into a groove of a molded body, and then an opening of the groove is covered with a metal casing. This simple structure allows noise to be released to the metal casing, which functions as a ground, via a metal plate constituting the molded body when the noise is generated at a control system unit or comes from an external device. The metal casing of the shielded harness can be used as a housing of a device, such as a power converter, and therefore, a fixing tool is not required for wiring, and the wiring is made easy. Moreover, compared with a conventional shielded wire, this shielded harness has a small number of parts and is produced by an easy method, thereby allowing reduction in production cost.