DonaldTrumpwasinauguratedasthe45thUSPresidentinJanuary2017.Asapresidentoutsideoftheestablishmentcamp,Trump’sgoverningconceptandpolicypreferenceshaveshowngreatdifferencefromthoseofhispredecessors.ThishasinevitablyaffectedtheUSagendaandpatternofinteractionwithChina.Meanwhile,thepolitical,economicandsocialchangesinbothChinaandtheUShavealsoinfluencedbilateralrelations,drivingatransitioninbilateralrelationsatadeeperlevel.TheChinapolicyoftheUnitedStateshasenteredanewphase,inwhichthecompetitionbetweenthetwocountrieshasbecomeevenintensified.ThisarticleaimstosummarizethefeaturesofChina-USrelationsduringthefirstyearofTrump’spresidency,identifychallengesofbilateralrelations,discussthecontentofSino-UScompetitiverelationsinthisnewstage,andanalyzethefeaturesandtrendsthatarelikelytocharacterizetheUnitedStates’Chinapolicyinthenearfuture.