Liao Ping is China's modern classics master and a key figure in academic transition period. He had a lot of works and Involved in classics. Feng You lan and Huang Kai guo called him as the end of an era. Since 1932, after the death of Liao Ping, academia spread out to arrange his literatures and research his Six changes , thoughts , position in the history and the relationships about Kang You wei , Zhang Zhi dong etc. From the point of research content, the academic research focused on Six changes, thought, value, status and entanglement about Kang You wei. From the method of research, current studies focused on combination about the history and theory that regarded six changes as the key link showing characteristics from point to area. This fragmentation, separated from the malpractice in the study have already appeared. It do not understand Liao Ping's academic evolution Internal logic comprehensively. Systematic and Integrated research will be direction of research in the future.