1. An X-ray examination method using an X-ray examination apparatus including a light receiving part for detecting an X-ray transmitted through an object by X-ray irradiation with a plurality of detection surfaces, the method comprising the steps of: specifying an examining portion of the object; generating the X-ray by moving, with respect to the plurality of detection surfaces, an X-ray focal position of an X-ray source to each starting position of the X-ray emission set such that the X-ray transmits through the examining portion and enters each of the detection surfaces; detecting an intensity distribution of the X-ray transmitted through the examining portion at each of the detection surfaces; and reconstructing image data of the examining portion based on data of the detected intensity distribution.