| The world is currently in the third wave of scientific and technological revolution.The U.S.government has a sound science and technology policy system,and plays an important role in the progress of science and technology in the United States.Trump is an "alternative" American president with distinct characteristics.The purpose of this paper is to analyze the content,characteristics and possible impact of Trump government’s science and technology policy on China since he took office.Taking the historical evolution of the US government’s science and technology policy system as the research starting point,including intellectual property protection policy,enterprise R&D policy,talent policy and anti-trust law,and then deeply analyzing three key R&D areas: Trump Space,Cyberspace and AI.Trump adopted unilateralism in international intellectual property protection in order to maintain American technological advantage;reformed the Bach-Dole Act to promote the better use of government scientific and technological achievements for the people;signed the Tax Reduction and Employment Act to promote enterprise research and development;built American talent team through domestic self-cultivation and international absorption;since the 1990 s,the U.S.government has come more and more.The more we consider the role of anti-trust science and technology policy.Trump strives to achieve the strategic objectives of leadership in all aspects of space,eliminating the asymmetric advantages of opponents in cyberspace and key infrastructure security,and maintaining the global leadership of the United States in artificial intelligence through institutional settings or restructuring and increasing resources investment.Following the content of S&T policy,this paper analyses Trump’s attitude,policy characteristics and causes of S&T innovation in the United States.In terms of attitude,Trump actually attaches great importance to technological innovation in the United States,and the total government R&D investment keeps growing at the beginning of his term of office.First of all,Trump attaches more importance to national security.Differences in work agenda cause Trump to reverse Obama’s R&D strategy and increase R&D expenditure in defense-related departments,which is also directly reflected in the key R&D areas.In the first place,Trump attaches importance to R&D efficiency and takes many concrete measures to improve the efficiency of government R&D.The reasons for the inclination of R&D funds to defense-related departments are: the concept of "seeking peace by strength" in the way of security,the "American priority" doctrine of international cooperation and the "Trump economics" used in government governance.In the two chapters,the possible challenges in Trump’s key research fields and the possible impacts of Trump’s government’s science and technology policies on China are analyzed respectively. |