Abstract: Objective To investigate the research process of wisdom classroom and the current hot-spot of knowledge under studies associated with the intelligence classes in mainland China. Methods Publications on the research of wisdom classroom were retrieved in the China National Knowledge Infrastructure( CNKI) database from 2006 through 2019, and analyzed on bibliometric indicators and knowledge map basis regarding annual publishing trend, source organization of the papers, distribution of high-frequency authors, discipline category, high - frequency keywords, hot-spot clustering and evolution of the hot-spot. Results A total of 2 390 publications on the research of wisdom classroom were retrieved. Research on the wisdom classroom tended to rapidly increase year by year, and peaked in 2019. The institutions and authors with the highest publications were Zhong Shao-chun and Xie Yue-guang from Northeast Normal University. As far as discipline was concerned, wisdom classroom received higher attention from educational sectors. Analysis on the highfrequency keywords showed that the " Teaching mode" ranked the first on list of hot-spot on wisdom classroom, and analysis on the knowledge map indicated that the wisdom classroom was clustered on 7 hot-spots since 2006. Current research was
focused on the themes such as " Internet plus" , " Teachers ' role" and " Core literacy" . Conclusion Research on the wisdom classroom is promising, tending to change in hot-spot from macro to micro level based on practical application. This should be the tendency by deeply incorporating wisdom classroom with diverse disciplines in this field of study.

Key words: Wisdom classroom, Visual analysis, Cluster analysis, Research hotspot