Method of managing visiting guests by face recognition

A method of managing visiting guests by face recognition, comprising steps of:

• extracting a face image of a visiting guest by an operator or an electronic control device via an image capturing device;
• executing a face recognition process by examining the face image of the visiting guest determined by the electronic control device if the face image of the visiting guest is stored in a database, wherein said database comprises at least a plurality of face image data, and each face image data consists of the face image, guest information and visiting information which are previously set up by the operator or the visiting guest;
• displaying the face image data of the visiting guest if the face image of the visiting guest is stored in the database, or enroll a new face image data of the visiting guest if the face image of the visiting guest is not stored in the database and then displaying the new face image data of the visiting guest just enrolled/registered;
• setting up at least one authorized item by the operator or the electronic control device;
• implementing a visiting goal confined by the authorized item via the electronic control device or the operator using biological mechanism with face recognition;
• monitoring the status of the visiting guest by the electronic control device or by the operator to continuously examine if the visiting guest violates the authorized item, and informing and reminding a visited department if the authorized item is violated;
• waiting until the visiting guest leaves;
• and
• recording and updating log page and the face image data of the visiting guest in the database.