Disclosed are a two-dimensional single layer image capturing device and method for same which are capable of providing a single layer image for an image layer disposed between an axis of rotation and an X-ray emitting source. A two-dimensional single layer image capturing device according to the present invention comprises: a capturing unit having an X-ray emitting source and an X-ray sensor disposed facing each other with respect to an axis of rotation therebetween; a driving unit for rotating the X-ray emitting source and the X-ray sensor centrally around the axis of rotation; and an image forming unit that uses a plurality of X-ray penetrating images captured during the driving of the driving unit to form a two-dimensional single layer image of an image layer disposed between the axis of rotation and the X-ray emitting source.