A CAM apparatus includes: an input receiving unit that receives designation of a part where core fixing machining is performed in a machining shape forming a core and divides the machining shape into a first machining shape element for which the core fixing machining is performed and a second machining shape element, which is connected to the first machining element and for which the core fixing machining is not performed, a machining-condition setting unit that allocates a first electric condition for the core fixing machining to the first machining shape element and allocates a second electric condition to the second machining shape element, and a machining-program generating unit that generates a machining program for machining the second machining shape element under the second electric condition and continuously machining the first machining shape element under the first electric condition after the machining of the second machining shape element.