The book aims to depict the whole picture of China's Anti-Monopoly Law (AML) in the digital sector and reveals the three key factors that shape AML enforcement.The author introduces the legal revolution and a major enforcement campaign in the digital sector. She focuses on three typical monopolistic behaviours-abuse of dominant position, merger control, and monopoly agreements. High-profile cases-such as administrative penalties against Alibaba and Tencent and private lawsuits against Apple and Didi Chuxing-are discussed in detail. She also identifies three underlying factors that have influenced AML enforcement reform: the political factor, the legal factor, and the academic factor. Finally, the book raises open questions and challenges that are relevant not only to China but to a wide range of jurisdictions.The book will appeal to competition law (antitrust) and Chinese law academics, practitioners, and officials, as well as general readers interested in the subject.