A method for producing an artificial bone precursor is disclosed. The method comprises:extracting a part corresponding to a cancellous bone and/or a cortical bone from digitalized three-dimensional image data of a living bone, followed by setting a center line on the part drawing a beam or a wall having a uniform diameter or thickness along the center line to form artificial bone image data and stacking a sintered layer by laser-sintering a powder of titanium and the like based on the artificial bone image data. The precursor is suitable for an artificial bone having excellent osteoconductivity and osteoinductivity.