There is provided an endoscope apparatus that can simply and accurately obtain measurement information without imposing a burden on a user in a case where a subject has a three-dimensional shape.An auxiliary measurement light-emitting unit emits auxiliary measurement light that is planar light including at least two first feature lines. A taken image obtained through the imaging of a subject includes an intersection curve and at least two first spots that are formed at positions corresponding to first feature lines on the intersection curve. Measurement information representing the actual size of the subject is displayed in the taken image by using the positions of the first spots.
