Abstract: An apparatus for inspecting a slitter, according to an embodiment of the present invention, inspects the assembly state of a slitter that is applied to a slitting process of a battery, and may comprise: an imaging device for capturing an image of installation shapes of an upper knife and a lower knife included in an upper-knife unit and a lower-knife unit and cutting an electrode through a rotational motion; and a control unit for deriving at least one inspection parameter from the captured image of the installation shapes of the upper knife and the lower knife, and determining the assembly state of the slitter according to the derived inspection parameter.