To provide a plating removing apparatus for 3-piece wheels, which can easily and neatly remove plating at the welding planned portion of the superimposed part of the inner rim and the outer rim. A plating removing apparatus that removes plating of a welding planned portion R in a three-piece wheel having the inner rim 2B, the outer rim 2A, and a disk, comprises a support means 11 that rotatably supports the outer rim 2A, at least three holding rollers 34 that hold the rim supported by the support means 11 from the outer circumferential side, a rotation drive means 67 that rotates and drives the outer rim 2A held by the holding rollers 34, and a grinding means that grinds the welding planned portion R on the outer circumferential surface of the rim 2A by an abrasive cloth/paper 13 and removes plating the welding planned portion R.