1. An apparatus for registering face identification features, comprising: a face image retrieving portion for retrieving a face image of a person via a network using the person's name as a keyword, a face feature extracting portion for extracting features, which greatly influence identification of a person, from the face image retrieved by the face image retrieving portion; and a person's name, face image and feature database for registering the face image retrieved by the face image retrieving portion and the face feature extracted by the face feature extracting portion in a state where they are associated with the person's name.