A photo-shaping method which includes a process of photo-shaping a target object executed by a photo-shaping machine along with a computing process executed by a computing device, said photo-shaping process including a step of irradiating a light beam to a specified position of a powder material layer to sinter a desired part of the powder material to form a sintered layer, covering the sintered layer with a new powder material layer, irradiating a light beam to a specified position of the new powder material layer to sinter a desired part of the new powder material layer to form a new sintered layer integral with the underlying sintered layer, repeating the process of forming the sintered layers in lamination, and including a step of removing an outer face of a formed body of the sintered layers in lamination during the repetitive forming process of the sintered layers, the computing process executed by the computing device comprises the steps of: storing first parameter data of various parameters in a first parameter database for use in the light irradiation process in the photo-shaping process, said first parameter data including at least light beam irradiation spot diameter, light beam irradiation power and irradiation speed to be applied to the powder material; storing second parameter data of various parameters in a second parameter database for use in the removal process, said second parameter data including tool master data relating to the removal processing means and cutting process conditions of a tool to be used; generating a first path as a light beam irradiation path for the light irradiation process, on the basis of contour data of each section sliced at a specified pitch of three-dimensional CAD model data of the target object desired to be formed and the first parameter data stored in the first parameter database; generating a second path as a removal processing path for the removal process, on the basis of the three-dimensional CAD model data, the second parameter data stored in the second parameter database and removing timing data showing a timing of executing the removal process; generating driving programs for driving the photo-shaping machine for executing the photo-shaping process including the light beam irradiation and the removal processes, on the basis of the first path data, second path data and removing timing data, thereby performing the photo-shaping and removal process according to the driving programs, characterized in that said second path generating step extracts from the second path generated for the entire object model portions corresponding to each removing height range divided by the removing timing data in order to obtain diveded second paths and if there are portions to be removed at different positions within a certain removing height range, generates an aerial route path (P2'), consecutively connecting adjacent divided second paths generated for the portions, the aerial route path ignoring the object shape above said certain removing height range. storing first parameter data of various parameters in a first parameter database for use in the light irradiation process in the photo-shaping process, said first parameter data including at least light beam irradiation spot diameter, light beam irradiation power and irradiation speed to be applied to the powder material; storing second parameter data of various parameters in a second parameter database for use in the removal process, said second parameter data including tool master data relating to the removal processing means and cutting process conditions of a tool to be used; generating a first path as a light beam irradiation path for the light irradiation process, on the basis of contour data of each section sliced at a specified pitch of three-dimensional CAD model data of the target object desired to be formed and the first parameter data stored in the first parameter database; generating a second path as a removal processing path for the removal process, on the basis of the three-dimensional CAD model data, the second parameter data stored in the second parameter database and removing timing data showing a timing of executing the removal process; generating driving programs for driving the photo-shaping machine for executing the photo-shaping process including the light beam irradiation and the removal processes, on the basis of the first path data, second path data and removing timing data, thereby performing the photo-shaping and removal process according to the driving programs, characterized in that said second path generating step extracts from the second path generated for the entire object model portions corresponding to each removing height range divided by the removing timing data in order to obtain diveded second paths and if there are portions to be removed at different positions within a certain removing height range, generates an aerial route path (P2'), consecutively connecting adjacent divided second paths generated for the portions, the aerial route path ignoring the object shape above said certain removing height range.