Abstract: The present invention provides a production method for producing a dental implant prosthesis using CAD/CAM, the dental implant prosthesis production method being characterized by: obtaining a set of three-dimensional shape data on an oral environment and displaying same in a CAD system; obtaining a set of three-dimensional shape data on a dental implant prosthesis from a wax-up model; processing the sets of data so as to derive three-dimensional shape data on a crown and an abutment such that the shape of the inside of the crown is determined depending on the shapes of the chamfer surface and post of the abutment; and producing the crown and the abutment through processing by using the derived three-dimensional shape data on the crown and the abutment.