This book introduces the process principle of the new generation of controlled rolling and controlled cooling with ultra fast cooling technology as the core, the latest research progress of ultra fast cooling technology and its industrial application. This book covers the process principle, complete sets of equipment and key technologies, automatic control system, product process technology and industrial application practice of typical products of the new generation of controlled rolling and cooling technology for hot strip mill. This book can be used as a reference for scientific researchers and engineering technicians engaged in the research of material processing engineering and the development of hot strip varieties.