To manufacture a winding body (for example, a loop antenna) of an arbitrary shape.

A molding die 2 having a molding surface for molding a wire in loop and molding plates 11a-11c, 12a-12c, 13a-13c, 14a-14d movable in directions where they go near and away from the molding surface of the molding die 2 are used and a wire is pressed against the molding surface of the molding die 2 by the molding plates while winding the wire (for example, an enameled wire) on the molding surface by rotation of the molding die 2. Owing to the above configuration, the antenna having an arbitrary looped-shape modeling after the molding die can be manufactured to increase the degree of freedom in design of a housing of a radio communication apparatus such as, for example, a cell phone.