Based　on　the　horizontal　excitation　character　of　an　intelligent　vibratory　roller　and　the　soil　parameters,　the　compaction　processes　were　classified　into　three　compaction　conditions,　namely,　the　pure　rolling,　slip-roll　and　pure　slip.　According　to　the　working　condition　in　different　stages　the　interacted　dynamic　process　between　the　drum　and　soil　was　analyzed.　Taking　the　XG6133D　intelligent　roller　as　an　example,　the　response　characteristics　were　investigated　by　means　of　numerical　simulation.　During　the　compaction　process,　the　motion　of　vibratory　drum　experiences　from　single　periodic　motion　to　periodic　doubling　motion,　the　wave　form　at　peaks　and　valleys　of　its　time　response　is　distorted,　and　in　spectrums,　in　addition　to　the　fundamental　wave,　only　rich　odd　harmonics　are　presented.　The　conclusion　of　the　article　is　valuable　to　forecast　theoretically　the　compaction　status　and　improve　the　compaction　quality.