Man-Robot synergy education, a new form of education characterized by educational robots, is conducive to optimizing and improving teaching quality, which results in the development and application of educational robots. The research on the internal and external knowledge system of educational robots can improve the cognition, evaluation and research of educational robots, and ultimately promote the development of a new model of man-robot synergy education. By means of BERT technology, it can be seen that through the analysis of the research literature on educational robots in recent 20 years,...