Abstract: Study on the philosophy of SIMA Guang though is not hot topic of research,but it is a controversial issue in modern academic.Since reforming and opening,the academic community spread out intense discussion on whether SIMA Guang’s ideas from Xunzi’s thoughts,his thoughts about ether can be positioned a ether as the ontology,in his thought of virtual and ether phase equivalent,as well as the relationship between His ideas and the neo-confucianism.These discussions while effectively promoted the pr...