A three-dimensional shape measurement device of the present invention, includes: an imaging unit sequentially outputting a captured predetermined two-dimensional image (hereinafter, referred to as a first two-dimensional image), while outputting a second two-dimensional image, according to a predetermined output instruction, the second two-dimensional image having a setting different from that of the imaged first two-dimensional image; an output instruction generation unit generating the output instruction on the basis of the first two-dimensional image and the second two-dimensional image outputted by the imaging unit; and a storage unit storing the second two-dimensional image outputted by the imaging unit.