According to one embodiment, an X-ray computed tomography imaging apparatus includes an X-ray source, an X-ray detector, a gantry, a column, and a display. The display configured to display, on the floor surface, a graphic corresponding to one of a range in which a field of view formed by the X-ray source and the X-ray detector is projected onto the floor surface from a vertical direction of the gantry and a range in which an outer edge of the bore is projected onto the floor surface from the vertical direction of the gantry.
