PROBLEM TO BE SOLVED: To provide an artificial tooth producing apparatus allowing a user not yet skilled in work, to easily position a workable portion of a workpiece and a cutting position by a tool.SOLUTION: The artificial tooth producing apparatus produces an artificial tooth by three-dimensionally changing a physical relationship of a tool relative to a workpiece on the basis of working data, and cutting the workpiece by the tool. The artificial tooth producing apparatus includes: creation means for creating marking data as data representing an area in which the artificial tooth to be produced at a prescribed position of the work piece is fitted； and marking means for drawing a ruling line on the basis of the marking data created on the surface of the workpiece by the creation means.SELECTED DRAWING: Figure 1
