An embodiment of the present invention makes it possible to carry out stable inspection on performance of a touch panel. An inspection device for inspecting a touch panel on a basis of a resistance value of a transparent film of the touch panel, which includes at least the transparent film, a dielectric member, and a sensor stacked on top of each other, includes: an integrating circuit configured to obtain a background capacitance of the touch panel by applying a first pulsed voltage to the sensor; and a switch configured to connect the transparent film to a ground or to a generator configured to generate a second pulsed voltage which is opposite in phase to the first pulsed voltage.