This book is an essential fruit of the renowned historian Lai Xinxia on the analysis of Beiyang Warlords. It is the only work in China that entirely narrates the process of its rise, development, struggle, decay, and death. Based on plenty of historical materials and relevant research achievements at home and abroad, it explores the Chinese social and historical problems between 1895 and 1928 systematically and deeply. At the same time, it puts forward several new opinions and thoughts to broadly expand the research and cognition space in this period. Lai Xinxia is a renowned historian on modern Chinese History, bibliographer, and local chronicler.