研究期間:10108~10207;Li Kung, a master of Yijing learning in the early Qing Dynasty, has pored over Yijing and written Zhouy-zhuanzhu in seven volumes and Zhouyi- shikao in one volume. Despite the fact that major scholars in the early Qing Dynasty advocate Zhu Zi's Yijing learning, Li Kung insists on his viewpoints and options, including his identifying with Yen Yuan’s thoughts of practical utilization, and his consulting well-known scholars. This study intends to deeply scrutinize the following questions: we’d like to realize, first, Yen Yuan’s and Mao Qi-ling’s influences on Li Kung’s Yijing learning; second, his most important claims on Yijing learning; third, how Yijing learnings in Han and Song Dynasties influences him and his criticism of them; and fourth, the relationship and influences among scholars of Yijing learning before and after Li Kung. This study will help us better understand the relation / difference between scholars in the early Qing Dynasty and their predecessors and their influences on the later scholars in the middle of Qing Dynasty, which helps make a clear picture of a great diversity of Yijing learning in the early Qing Dynasty.