The present invention relates to a both-eye photographing device using a single camera, in which an optical device is arranged such that photographing of both eyes can be done by one camera, and to an eye tracking device using the same. The both-eye photographing device using a single camera comprises: the single camera which photographs a first light reflected from a first eyeball and a second light reflected from a second eyeball a first hot mirror which reflects the first light a second hot mirror which reflects the second light and a light collecting unit which collects the first and second lights reflected from the first and second hot mirrors and leads the lights towards the single camera. The existing glasses-type display has problems of a heavy weight and a large amount of electric power consumption by including a camera for photographing the front side and another camera for photographing the eyes respectively (that is, one or more cameras are installed). Therefore, the both-eye photographing device using a single camera can solve the problems of the existing glasses-type display by photographing the eyes and the front side with only the single camera.COPYRIGHT KIPO 2017본 발명은 양안의 시선을 한대의 카메라로 촬영 가능하도록 광학기구를 배치한 단일 카메라를 이용한 양안 촬영 장치와 이를 이용한 안구 추적 장치에 관한 것이다.