A method for producing an artificial bone capable ofaccurate molding at a joined part with appropriate strengthin which electromagnetic waves or electron beams are irradiatedto a layer of one or more types of powder selected from metalbiomaterials, ceramics for the artificial bone and plasticresins for the artificial bone based on image data correspondingto a shape of the artificial bone , thereby effecting sinteringor melting, and the thus sintered layer or melted and solidifiedlayer is laminated, wherein a surface finish step is adoptedthat inner faces and/or outer faces of both ends and theirvicinities configuring the joined part to a human bone partare polished by a rotating tool based on the image data andalso irradiation of electromagnetic waves or electron beamsat both ends and their vicinities constituting the joined partis set greater than that at other regions.
