Abstract: Duringtheimagingprogressofspacebasedhigh-resolutioncamera,theimagequalitywillbeaffectedbyinstabilityofsatelliteplatform.Aimedtothisproblem,mechanismofimagequalitydegradationduetoimagemotionwasfirstlyanalyzedandthendifferentsimulationmodelsforstaring,linearscanningandtimedelayandintegrationimagingmodeswerebroughtuptosimulateimagescausedbyimagemotion.Thehigh-resolutionremotesensorwasthentakenasthesimulationexampletoanalyzeimagequalityunderdifferentconditions.TheresultsshowthatmoreimagedegradationisbroughtbyvibrationforTDIimagingmodeandimagequalityismoresensitivetoplatformvibrationwithhigherresolution.Atlast，therelationbetweenspatialresolutionandplatformvibrationparameterswasbuiltandtolerancesofvibrationamplitudeweregivenaccordingtodegradationmodelandimagequalityevaluation，whichcanprovidereferencesforparametersofstabilizationdevices．

Key words: platformvibration, opticalimaging, highresolution, simulationmodel, imagequality