To provide an endoscope apparatus with which an affected site can be treated with a treatment instrument while viewing tissue in the body cavity, including a region located at the rear of the treatment instrument. An endoscope apparatus 1 is employed, which is provided with an image generating portion 31 that generates an image of an subject A an image-saving memory portion 32 that saves a real-time image a forceps-region extracting portion 36 that extracts a forceps region, in which forceps exist, from the real-time image an image-position aligning portion 35 that aligns positions of the saved image saved in the image-saving memory portion 32 and the real-time image a forceps-region extracting portion 36 that extracts a region corresponding to the forceps region from the saved image saved in the image-saving memory portion 32 and an image combining portion 38 that combines an image of the region extracted by the forceps-region extracting portion 36 and the real-time image.
