The endoscope apparatus of the present invention includes: an insertion portion having a bending portion an observation device that is provided at the insertion portion an illumination unit that is provided at the insertion portion, and that illuminates a visual field of the observation device a main body unit that is formed having a size that enables it to be held and operated by one hand of a user an operating section that is used to operate the bending portion a display unit that is connected to the insertion portion, and that displays images acquired by the observation device a light emitting component that is provided in the main body unit, and that is connected via a light guide to the illumination unit a heat discharge unit that is provided at the main body unit such that at least a portion thereof is exposed, and that is thermally connected to the light emitting component and a shielding portion that is provided at the main body unit, and that covers at least a portion of the periphery of the heat discharge unit, and that also inhibits the heat discharge unit contacts with external portions thereof.
