Abstract:In recent years, the United States has seriously hindered the development of science and technology in China by implementing a series of measures such as export controls, economic sanctions, and cooperation restrictions, and United States-China technological frictions have brought a series of major problems related to technological and economic security to Chinese industries and enterprises. Based on the existing research, the study analyzes the current situation of China's science and technology security, the impact of technological friction on enterprises of China and the United States as well as enterprises of other countries, and puts forward policy recommendations in terms of building a science and technology risk monitoring and early warning mechanism, strengthening the ability of original innovation and strategic technology research, promoting high-quality upgrading of industrial value chain, cultivating forging long-board enterprise subjects and clusters, improving the training and introduction mechanism of scientific and technological talents, actively expanding international cooperation, etc.