An X-ray diagnostic apparatus includes an X-ray generating unit which generates X-rays, an X-ray detecting unit which detects X-rays transmitted through a subject, a C-arm on which the X-ray generating unit and the X-ray detecting unit are mounted, a support mechanism which movably supports the C-arm, a high voltage generating unit which generates a high voltage for generating X-rays from the X-ray generating unit, a first foot switch to input a first user instruction associated with generation of the X-rays, a second foot switch to input a second user instruction associated with movement of the C-arm, and a control unit which controls the high voltage generating unit in accordance with the input of the first user instruction and controls the support mechanism in accordance with the input of the second user instruction.