The research on face recognition system began in the 1960s. After the 1980s, with the development of computer technology and optical imaging technology, it was improved. However, it really entered the primary application stage in the late 1990s, and was mainly realized by the technology of the United States, Germany and Japan. The key to the success of face recognition system lies in whether it has a cutting-edge core algorithm and makes the recognition results have a practical recognition rate and speed. "Face recognition system" integrated with artificial intelligence, machine recognition, machine learning, model theory and expert system, video image processing, such as a variety of professional and technical, at the same time should be combined with the theory and implementation of intermediate value, is the latest applications of biometrics, the implementation of its core technology, shows the transformation of the weak to strong ai artificial intelligence.