Li Xueqin, 1933 was born in Beijing, 195 1 to 1952 studied in the philosophy department of Tsinghua University. He used to be a researcher, director of the Institute of History of China Academy of Social Sciences, and director of the Institute of Thought and Culture of Tsinghua University. He has served as a visiting professor in many famous foreign universities, such as Cambridge University, University of California (Berkeley), and as a part-time professor in many domestic universities.

At present, he is a professor in the History Department of Tsinghua University Academy of Humanities and Social Sciences, director of the International Sinology Institute, doctoral supervisor, member of the the State Council Academic Degree Committee, leader of the historical discipline evaluation team, leader and chief scientist of the Xia, Shang and Zhou Dynasties Dating Engineering Expert Group, chairman of the China Pre-Qin Historical Society, and academician of the International Eurasian Academy of Sciences. "the third big discovery"

Bamboo Slips of Tsinghua let us discover a batch of ancient books of traditional culture before "Qin Wang burned books" in the pre-Qin period, which belong to classics and historical books, including the History of Ancient Literature. It is the first time that we have studied history. At that time, Wang Guowei twice mentioned "China's greatest academic discovery since the Han Dynasty" and "a book of Confucius in the wall and a book in the grave". The discovery of bamboo slips in Tsinghua is as significant as these two times, and it can be called "the third major discovery".

From the content, there are not only Shangshu, but also poems, rituals, music and other materials. Poetry, Books, Rites and Music is a classic that has been circulated for more than two thousand years, and these contents in Bamboo Slips of Tsinghua will be discussed frequently even after many years. Judging from the contents of Shangshu found on bamboo slips in Tsinghua this time, the ancient document Shangshu found in Notes to Thirteen Classics is really unreliable. Among these bamboo slips in Tsinghua, there should be about 20 ancient history books, some of which have been handed down from generation to generation, but most of them are unprecedented lost articles. This is of great significance to our understanding of the real ancient Chinese history.

In addition, there is a history related to the Zhou Dynasty, including the history of Chu. These contents have been recorded in some books in the past, but the language is not clear. The newly discovered content can correct the traditional misunderstanding and is of great significance to re-examine and establish the history of Zhou Dynasty. Therefore, the discovery and research of these "Tsinghua Bamboo Slips" not only for the literature itself, but also opens a new horizon for us to understand the ancient face.