Abstract:Imposing strict export control on technologies related to national security and interests is common international practice. In recent years, with the increasingly fierce international competition, developed countries and regions such as the United States, Europe, and Japan are adjusting their technology export control policies. On the basis of summarizing the evolution of technology export control system in major developed countries and regions, this study mainly analyzes the latest trend of technology export control of western countries such as the United States and its impact on China’s science and technology innovation. Finally, countermeasures and policy suggestions are put forward from the perspectives of improving technology export control system, strengthening strategic technology research ability, and optimizing independent and controllable ecological environment.