An X-ray device includes a camera to image an object and output the image of the object a display member using a touch screen to display the image of the object output from the camera and an X ray irradiation region of the object an X-ray irradiation region controller to control a region of the object to which an X-ray is irradiated and a control member to enable the irradiation region controller to control the region of the object to which an X-ray is irradiated according to the X ray irradiation region when the X-ray irradiation region is determined based on the image of the object displayed in the display member.
