简介：Thereentrytrajectoryplanningforhypersonicvehiclesiscriticalandchallenginginthepresenceofnumerousnonlinearequationsofmotionandpathconstraints,aswellasguaranteedsatisfactionofaccuracyinmeetingallthespecifiedboundaryconditions.Inthelasttenyears,manyresearchershaveinvestigatedvariousstrategiestogenerateafeasibleoroptimalconstrainedreentrytrajectoryforhypersonicvehicles.Thispaperbrieflyreviewsthenewresearcheffortstopromotethecapabilityofreentrytrajectoryplanning.Theprogressoftheonboardreentrytrajectoryplanning,reentrytrajectoryoptimization,andlandingfootprintissummarized.Themainchallengesofreentrytrajectoryplanningforhypersonicvehiclesareanalyzed,focusingontherapidreentrytrajectoryoptimization,complexgeographicconstraints,andcooperativestrategies.