According to an X-ray imaging device (1) for performing CT imaging, a main body control section (60) is configured to control at least one of an X-ray revolution plane formed by an X-ray cone beam (Bx) along with the revolution of a revolving arm (30) and a revolution range of the revolving arm (30) in accordance with a CT imaging area (CA) accepted by an imaging area setting screen (600). Such control is performed in order to decrease X-ray radiation to a high sensitivity site (H) in the area (GD) that revolves during the CT imaging, the high sensitivity site (H) being positionally set in a biological body as a site that is sensitive to X-rays.
