An object of the invention is to provide an endoscope apparatus in which a user does not need to adjust irradiation light quantity intentionally while confirming a captured image, and a captured image which is bright and has stable tint can always be obtained without being limited by an imaging distance with respect to the observation of the structure or components of living bodies. The endoscope apparatus includes a first light source section, a second light source section, light source control means which controls the irradiation and irradiation light quantity, imaging means which obtains a captured image, luminance value calculating means which calculates the luminance value, light source light quantity changing means which changes the irradiation light quantity according to the luminance value, white balance adjustment value calculating means which calculates a white balance adjustment value, and gain adjusting means which adjusts the gain of the imaging means.
