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.