An X-ray apparatus according to this invention includes an X-raying condition fixing controller for carrying out controls to cause an X-ray emission from an X-ray tube on X-raying conditions effective when an X-ray emission is stopped by the automatic exposure controller, and turning off automatic exposure control by the automatic exposure controller. Thus, the automatic exposure control is carried out only at the time of starting radiography, and a subsequent sequential shooting can be carried out in the state of X-raying conditions at that time being locked and the automatic exposure control being turned off. When X-raying a new site to be imaged after a current site to be imaged, driving of a top board is detected during the sequential shooting, and the automatic exposure control can be carried out only at the time of starting radiography for the new site to be imaged, and a subsequent sequential shooting can be carried out in the state of locking to the X-raying conditions effective at that time, with the automatic exposure control turned off. As a result, a proper automatic exposure control can be carried out without setting a radiographic collection mode.