PROBLEM TO BE SOLVED: To generate a long image by joining a plurality of X-ray images taken while changing a shooting position in a state where a shooting unit is tilted, and to generate a long image in which each X-ray image is appropriately joined. Provide an X-ray imaging apparatus capable of generating the above. An X-ray imaging device 100 includes a top plate 1, an X-ray irradiation unit 9, and an X-ray detection unit 10, an imaging unit 2 that captures an X-ray image 40, a rotation mechanism 3, and the like. In a state where the moving mechanism 4 and the X-ray optical axis 22 emitted from the X-ray irradiation unit 9 are tilted with respect to the top plate 1, the top plate 1 and the imaging unit 2 are placed in the lateral direction of the top plate 1. When images are taken at a plurality of imaging positions 21 while being relatively moved in at least one of the above and the longitudinal directions, the magnification of the plurality of X-ray images 40 is increased based on the relative movement amount of the top plate 1. An image processing unit 17 that generates a long image 41, which is a longer image than the X-ray image 40, by performing a process of changing and joining the images is provided. [Selection diagram] Fig. 1【課題】撮影部を傾斜させた状態で撮影位置を変更しながら撮影した複数のＸ線画像を繋ぎ合せて長尺画像を生成する場合でも、各Ｘ線画像が適切に繋ぎ合わされた長尺画像を生成することが可能なＸ線撮影装置を提供する。【解決手段】このＸ線撮影装置１００は、天板１と、Ｘ線照射部９とＸ線検出部１０とを含み、Ｘ線画像４０を撮影する撮影部２と、回動機構３と、移動機構４と、Ｘ線照射部９から照射されるＸ線の光軸２２を天板１に対して傾斜させた状態において、天板１と撮影部２とを、天板１の短手方向と長手方向とのうち、少なくともいずれかの方向に相対移動させながら複数の撮影位置２１において撮影した場合に、天板１の相対移動量に基づいて、複数のＸ線画像４０の拡大率をそれぞれ変更して繋ぎ合わせる処理を行うことにより、Ｘ線画像４０よりも長尺な画像である長尺画像４１を生成する画像処理部１７と、を備える。【選択図】図１
