To perform observation of an internal part at a place where entrance of a person is not permitted and an electric motor is not used, and to high- efficiently, safely, and reliably convey a camera to an object moving at a high speed.

This conveying device 10 comprises a pipe 12, formed of a nonmagnetic material, arranged along the conveyance route of a camera 11, a support member 13 protruded from the outer surface of the pipe to fix it on a conveyance route; an outer running body 16 fitted in the part, except the support member of the pipe, constituted movably along the outer surface of the pipe 12, provided on an inner surface with an outer magnetic body 17, and provided on an outer surface with a cameral 11, and an inner running body 21 inserted in the pipe 12 and constituted movably in the pipe 12 by pressure fluid fed in the pipe 12, and provided on an outer surface with an inner magnetic body 23. One or both of an outer magnetic body 17 and an inner magnetic body 23 are magnetized and movement of the inner running body 21 and movement of the outer running body 16 are moved by a magnetic attraction force.