The purpose of the present invention is to provide an X-ray imaging device capable of obtaining more diversified X-ray image information. To this end, the present invention comprises: an X-ray generation device for generating an X-ray; an X-ray detection device for detecting the X-ray which is generated in the X-ray generation device and penetrates the subject; and a collimator arranged between the X-ray generation device and the X-ray detection device, wherein the X-ray detection device and/or the collimator provides an X-ray imaging device configured to rotate relative to the X-ray generation device. Thus, since it is possible to adjust an X-ray detection area if necessary, the visual field of the imaging device can be adjusted such that diversified X-ray image information can be obtained.