AI is a major driver in the new technological and industrial revolution,strongly influencing the global economy,social progress,and people's lives. It is a center of widespread attention and a key area of technological competition around the world. This book gives an overview of global Al development and provides a quantitative analysis in the aspects of strategic development,academic research,patents,industrial application,capital investment,and important areas of interest. It also offers a layered,multidimensional national Al competitiveness index system with related quantified assessments and analysis. Thus,the book is highly valuable as a reference for organizations and individuals involved in Al research,product R&D,application promotion,capital investment,and policy planning.