A mobile X-ray capturing apparatus includes an X-ray tube for irradiating an object with X ray, an arm for holding the X-ray tube, and a support pillar for holding the arm so as to facilitate arrangement of units. Further, the mobile X-ray capturing apparatus includes an arm energizing unit provided with an electrode incorporated in the arm for supplying power or a signal necessary for the X-ray tube, and a support pillar energizing unit provided with an electrode incorporated in the support pillar for supplying the power or the signal to the arm.
