An endoscope apparatus includes: a video signal acquisition portion that images an object to acquire a video signal by a stereo optical system a video signal processing portion that processes the video signal to generate a display video signal a measurement processing portion that performs measurement on the basis of the video signal and a display portion that displays the display video signal. The video signal processing portion generates the display video signal by extracting one image from the video signal including a plurality of images from the stereo optical system, and the display portion displays the display video signal including the one image extracted by the video signal processing portion during a period regarding measurement.