Abstract: An X-ray imaging apparatus is proposed. The X-ray imaging apparatus is configured to capture first and second X-ray images having examination object's alignment positions different from each other, the X-ray imaging apparatus including an imaging part configured to include a generator and a detector facing each other with an examination object interposed therebetween, and rotate the generator and the detector about a rotation axis therebetween to capture each of the first and second X-ray images, and an examination object alignment part configured to arrange the examination object between the generator and the detector, wherein a position of at least a part of the examination object alignment part is variable, so as to move and align the examination object to a first alignment position for capturing the first X-ray image and a second alignment position for capturing the second X-ray image, respectively.