The purpose of the present invention is to provide a capsule endoscope that has high power reception efficiency, effectively uses voids in a receiving coil, and is multifunctional, a capsule endoscopic inspection device capable of efficiently supplying power even when the location or orientation of the capsule endoscope is changed, and an efficient wireless power supply method employing the capsule endoscopic inspection device. The capsule endoscope 100 comprises: a camera for photographing the interior of a tubular organ Q; a transceiver for wireless communication with the outside; 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 100, a magnetic body is arranged along the inner periphery of the receiving coil, a self-propelling drive device comprises an electromagnet and a permanent magnet, and the self-propelling drive device 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. In an endoscopic inspection device 200 employing the capsule endoscope 100, a detection means detects the location and orientation of the capsule endoscope 100, and power transmitting antennas 2a, 2b are moved so that the received power is maximum.La présente invention concerne les éléments suivants : une capsule endoscopique qui présente une grande efficacité de réception d'énergie, utilise efficacement des vides dans une bobine de réception, et est multifonctionnelle; un dispositif d'inspection par capsule endoscopique apte à fournir efficacement de l'énergie même lorsque l'emplacement ou l'orientation de la capsule endoscopique est modifiée; et un procédé d'alimentation électrique sans fil efficace utilisant le dispositif d'inspection par capsule endoscopique.