Junjie Ma, graduated from Renmin University of China and received a doctorate in history in 2020. Research interests include history from Sui dynasty to Tang Dynasty、Dunhuang documents、The unearthed documents in Turpan , stone documents on law, etc. Representative papers include: An Examination of the Fragments of The Classics of Healing diseases collected by Lushun Museum , An Examination of Ancient Documents Unearthed in The Western Regions of China in Lushun Museum , A review of the research on "Gaoshen" documents in Tang Dynasty -- and trace back the origin of "Gaoshen" system , A Study on the Examination System of Scholars in Xiliang Period of China , A study on the edition of The Tang Imperial Edicts Collected in Qian Mu Tang , etc. In addition, there are translation papers. And participated in several social science projects.