This book comprehensively and systematically introduces the principles and methods of additive manufacturing technology. It includes an overview of additive manufacturing technology, commonly used core components of additive manufacturing technology, technologies such as selective laser sintering, selective laser melting, liquid resin stereo lithography apparatus, fused deposition modeling, laser engineered net shaping, wire arc additive manufacturing, and the application cases of these technologies. The book is systematic, comprehensive, universal, and novel, both well-written and well-illustrated. Covering theoretical research and practical applications, it is a highly valuable reference for the study and application of additive manufacturing technology.