The image analysis method may comprise the steps of: measuring a distance between a subject and an image analysis apparatus; outputting an image obtained by photographing the subject; selecting at least two feature points in the image of the photographed subject on the basis of information on the output feature points; calculating the relative size of the pre-stored original image of the subject on the basis of the measured distance; extracting feature points in the pre-stored original image of the subject, which correspond to the at least two selected feature points, on the basis of the calculated relative size; and comparing the image of the photographed subject with the original image on the basis of the selected feature points and the extracted feature points.