Hypersonic vehicle is nowadays a focus in the field of aeronautics and astronautics. It will encounter with severe aero-heating during hypersonic flight. As a result, a reliable integrated thermal management system is a necessity to ensure flight safety. Concept of integrated thermal management system was put forward respectively,based on the characteristics of hypersonic vehicles with different missions.For vehicle which is characterized by short flight time and quick change of velocity and altitude,a concept of thermal management system which uses liquid唱hydrogen as major heat sink and PCM material as supplementary heat sink was presented. For that with longer flight time and higher Mach number,a concept of thermal management system using endothermic fuels as heat sink was advanced.Key technologies concerning these concepts were discussed, and research focuses in the future were indicated.