1. A method—for correcting geometry of an image using a Line-Of-Sight (LOS) vector adjustment model, the method comprising: acquiring an image and auxiliary data for the image, the image obtained by photographing a ground surface; acquiring ground coordinates for a ground control point and image coordinates of the image matching the ground coordinates; adjusting a LOS vector of a sensor of a photographing device used to photograph the image using the auxiliary data acquired ;and adjusting the ground coordinates and the image coordinates acquired, thus obtaining error correction data; and applying the acquired auxiliary data and the obtained error correction data obtained to LOS vector adjustment models, and assigning ground coordinates to corresponding image coordinates of the image, thus performing exterior orientation for correcting distortion of the image.