The invention describes a method for producing a decorative ornamental part, eg a control key, having a symbol in relief that is defined by a clearance gap free as far as possible of webs and connections in the frame of the control key, wherein the decorative ornamental part is back-injected with a plastic melt by the plastic injection moulding process. In order to obtain a surface on the visible side of the inner part which is free of traces of clamping and retaining it is proposed: that the production method consists of a cutting operation to produce the clearance gap, that the stamping punch carrying out the cutting operation remains as a place-holder in the cut contour of the clearance gap during the injection operation, and that the subsequent injection operation producing a bond ensures the exact connection of the contour of the cut free inner part to the frame of the ornamental part.