简介：Thetimedomainparameteridentificationmethodofthefoundation-structureinteractionsystemispresented.Onthebasisofbuildingthecomputationmodeandthemotionequationofthefoundation-structureinteractionsystem,thesystemparameteridentificationmethodwasestablishedbyusingtheextendedKalmanfilter(EKF)techniqueandtakingtheunknownparametersinthesystemastheaugmentstatevariables.Andthetimeparameteridentificationprocessofthefoundation-structureinteractionsystemwasimplementedbyusingthedataofthelayerfoundation-storehouseinteractionsystemmodeltestonthelargevibrationplatform.Thecomputationresultshowsthattheestablishedparameteridentificationmethodcaninducegoodparameterestmation.