The study explores how international law was studied in China during the late Qing dynasty. Researchers have looked into when international law was introduced to China, how it was translated by Lin Zexu and Ding Weiliang, and how intellectuals in that era viewed and understood international law. They also examined how international law influenced diplomacy during the late Qing dynasty. The research has made significant progress in these areas, but there is a need for further investigation into both the materials and theories related to this topic.