With the aging of our society becoming more and more serious, the word "loneliness in old age" has become a future that many people do not want to mention but have to face. The elderly living alone are reduced to a disadvantaged group. With the increase of the age of the elderly living alone, it brings not only endless loneliness, but also various diseases. The companion robot can not only make up for the mental vacancy of the elderly living alone, but also monitor the real-time situation of the elderly and analyze the health of the elderly at any time, and automatically transmit the monitoring terminal through APP.