An automatic programming apparatus includes a machining-shape generating unit configured to generate second machining shapes for each of machining processes from each of a plurality of first machining shapes input from outside; a machining-order editing unit configured to receive an input of execution order of the machining processes; a machining-shape adjusting unit configured to extend, among a plurality of the second machining shapes having a same tool direction, which is a direction that a tool pierces, one of the second machining shapes in a direction opposite to the tool direction, delete, from the other machining shape that overlaps the one second machining shape because of the extension of the one second machining shape, a portion of the overlap, and generate a third machining shape; and a control-command generating unit configured to generate, based on the third machining shape and the input execution order, a control command.