The president of China Yijing Association is Liu Dajun. According to official website of China Ancient Philosophy Research Center of Shandong University, Liu Dajun (1943), a native of Zouping, Shandong Province, is an internationally renowned scholar of Zhouyi, a librarian of central research institute of culture and history, a member of the 10th and 11th CPPCC, a tenured professor of Shandong University, a doctoral supervisor, the director of the Research Center of Zhouyi and China Ancient Philosophy of Shandong University, a key research base of humanities and social sciences of the Ministry of Education, the president of China Zhouyi Society, the founder and editor of Zhouyi Research, and China of Shandong University. Professor Liu Dajun has devoted himself to the study of traditional Yi-ology in China for a long time, taking it as his duty to promote the culture of Yi-ology. In 1980s, he initiated and carried out the study of traditional Yi-ology. He is the founder and leader of Yi-ology in Shandong University, a leading figure in the study of Yi-ology in China, and has made important contributions to the restoration and development of traditional Yi-ology.