An endoscope apparatus has an image pickup device having a first pixel having a sensitivity in a first wavelength band, and a second pixel having a sensitivity in a second wavelength band including a part of the first wavelength band, a light source section configured to generate a first light for irradiating a subject, an intensity of which reaches a peak in the part of the first wavelength band included in the second wavelength band, and an addition section configured to generate a first addition signal obtained by adding an image pickup signal obtained by receiving a return light of the subject at a time of the first light being irradiated in the first pixel, and an image pickup signal obtained by receiving a return light of the subject at a time of the first light being irradiated in the second pixel.
