To provide a photographing device mounted on a traveling object using a linear sensor to be mounted on a traveling object capable of easily confirming the photographing situation.

In this traveling object mounted photographing device mounted on a traveling object such as an airplane, and to be used for photographing a ground surface or water surface to be photographed from the traveling object, the focal plane of a light guide optical system 2 such as a lens 2 for guiding a light from the object to be photographed is set with linear sensors 11-13 for photographing the object to be photographed, and a video image pickup sensor 15 capable of acquiring two-dimensional picture data for confirming the photographing situation. Thus, the photographing situation at each point of time from the linear sensors 11-13 can be easily and efficiently confirmed by using the two-dimensional picture data to be acquired by the video image pickup sensor 15.