1. A face recognition method, comprising: (a) setting key points at predetermined positions in an input facial image; (b) extracting a descriptor of each of the key points; and (c) determining whether the input facial image matches previously stored facial images using descriptors of first key points obtained from the input facial image and descriptors of key points in a predetermined region including second key points of the respective previously stored facial images corresponding to the first key points obtained from the input facial image, including: calculating and comparing distances between the first key points and the second key points using the descriptors of the first key points and the descriptors of the second key points, so as to allocate an identification symbol of a previously stored specific facial image including a second point having the shortest distance among the previously stored facial images as an identification symbol of each of the first key points; and allocating the most frequently allocated identification symbol as an identification symbol of the input facial image.