The endoscope system (10) includes a light source unit (20) that emits correction illumination light to be used for the correction in the correction mode in which the biological information observation mode is corrected and emits white light at least once a compensation amount calculation unit (76) that calculates a compensation amount of data to be used in the biological information observation mode using correction images obtained using the correction illumination light a correction unit (77) that corrects the biological information observation mode by compensating for the data using the compensation amount and a display control unit (66) that displays a white light image, which is obtained by imaging the observation object using the white light, on a display unit in the correction mode.
