The X-ray image capturing device includes a top board for laying a subject thereon, an image capturing unit for capturing an X-ray image, an image processing unit for generating an elongate image which is an image longer than the X-ray image by performing joining processing of a plurality of X-ray images, and a display unit for displaying an elongate image. Based on the position information on the top board and the image capturing unit, the image capturing range of the image capturing unit is displayed on the elongate image.
