This book comprehensively introduces Chinese and foreign historical materials and research results related to the history of the Xiongnu. In the context of world history, it discusses the entire process of the rise, power, migration, and decline of the Xiongnu from a macro perspective. The author extensively cites various Chinese and foreign literature and classics, and conducts in-depth research on the geographical environment, economic life, military and political system, religious awareness, language customs, cultural concepts and other aspects of the ancient Huns' life. Among the research results on the history of the Xiongnu so far, they are outstanding in terms of length, data, coverage, academic level, etc. It can be said to be a comprehensive work on the history of the Xiongnu.