A method of manufacturing an organic electroluminescence device includes: preparing an organic EL device in which an anode, an organic layer including a luminescent layer, and a cathode formed of a transparent material are stacked in order and which has a shorted defective portion; irradiating the organic EL device with a laser beam from a direction of the cathode; measuring an intensity of radiated light from the organic EL device after the laser beam is absorbed through multiphoton absorption; changing a focal position of the laser beam in a stacking direction for performing the irradiating and measuring, and subsequently determining the focal position of the laser beam in the stacking direction such that the intensity of the radiated light is minimal; and irradiating the determined focal position with the laser beam, so as to solve a defect caused by the shorted defective portion.