Abstract:This paper examines the evolution process of American technology policy since the Second World War, clarifies the dynamics, goals, and characteristics of the development of technology policy at each stage, and shows that the American technology policy in the cold War period is implied in the science policy, and then clearly put forward the special technology policy after the cold War, and then the technology policy has been developed well. This paper summarizes the determinants of American technology policy development as domestic factors, international environment, and characteristics of science and technology, and analyzes the future of American technology policy development.