The present invention provides an X-ray photographing apparatus in which the mechanical stability of the X-ray photographing apparatus that irradiates the head and/or teeth with X-rays and detects the X-rays, thus acquiring an image of the head and/or teeth, is improved, thereby achieving improved reliability of a product. To this end, the present invention provides an X-ray photographing apparatus comprising: an X-ray generator for generating X-rays an X-ray detector for detecting the X-rays generated by the X-ray generator and a collimator for permitting only a portion of the X-rays to pass through and blocking the residual X-rays, the apparatus further comprising support means for supporting the X-ray generator and the X-ray detector and varying the heights thereof. The X-ray generator and the X-ray detector are arranged facing each other at the respective left and right sides of the support means for supporting the X-ray generator and the X-ray detector so as to achieve a weight balance. The X-ray generator and the X-ray detector are arranged on a straight line together with the support means. The support means has an X-ray path through which the X-rays generated by the X-ray generator passes without interference.Cette invention concerne un appareil photo aux rayons X, la stabilité mécanique dudit appareil photo aux rayons X qui irradie la tête et/ou les dents de rayons X et détecte les rayons X pour acquérir ainsi une image de la tête et/ou des dents, étant améliorée, ce qui permet ainsi dobtenir une fiabilité améliorée du produit. Pour ce faire, la présente invention utilise un appareil photo aux rayons X comprenant : un générateur de rayons X pour générer des rayons X un détecteur de rayons X pour détecter les rayons X générés par le générateur de rayons X et un collimateur qui ne permet quà une partie des rayons X de traverser et bloque les rayons X résiduels, lappareil comprenant en outre un moyen de support pour supporter le générateur de rayons X et le
