A capsule endoscope according to one embodiment includes: a camera; a transceiver; a tubular receiving coil for receiving power supplied from an external power transmitting antenna via magnetic flux; a tubular capsule accommodating these components; and an X-ray marker to be used in location and orientation detection. In the capsule endoscope, a magnetic body is arranged along the inner periphery of the receiving coil, and a self-propelling drive device including an electromagnet and a permanent magnet is arranged in series with the receiving coil along the tubular axial direction of the capsule so that the permanent magnet does not enter the inside of the receiving coil.