A current perception threshold examination apparatus capable of realizing increased efficiency and reduction in a burden on an examinee is provided. In the current perception threshold examination apparatus that controls supply of a current from a power supply to electrodes of a catheter for diagnosis of interstitial cystitis, the current perception threshold examination apparatus has a direct current generating unit for generating a direct current on the basis of an instruction of a control unit, and a direct current resistance measuring unit that measures an electric resistance value of a diagnosis site on the basis of the direct current which is supplied to the electrodes.