A cutting apparatus that cuts a plate-like body in a feeding direction thereof includes: a first die disposed on one side of the plate-like body with a plurality of cutting blades, which include fixing portions, mounted thereon. A second die disposed on another side of the plate-like body with a plurality of cutting blades, which correspond to the cutting blades mounted on the first die, Fixing portions, mounted thereon by attaching the fixing portions and a driving apparatus for driving at least one of the first die and the second die toward the other die, wherein the lower mold and the upper mold have a plurality of attachment holes which, to enable the fixing portions to be inserted and mounted, are each formed with inner wall surfaces that contact the entire periphery of a fixing portion and an inner bottom surface that contacts a bottom surface of the fixing portion.