By　inputting　the　seismic　wave　with　step-by-step　increased　amplitude　until　the　slope　fails,　large-scale　shaking　table　model　tests　were　carried　out　to　study　the　dynamic　failure　characteristics　of　slope.　It　is　found　the　upper　tension　crack　connected　with　the　lower　shear　sliding　surface　runs　through　the　slope,　while　the　displacement　and　acceleration　response　at　monitoring　points　mutate,　indicating　that　the　slope　failure　may　occur.　In　addition,　block　masses　at　some　parts　of　slope　crest　may　be　thrown　due　to　the　earthquake　shock.　By　gradually　increasing　the　input　amplitude　of　seismic　wave　using　the　dynamic　differential　software　FLAC,　the　slope　model　was　simulated　on　the　shaking　table.　It　was　approved　that　the　tension　crack　connected　with　the　shear　sliding　surface　running　through　the　entire　slope　is　a　necessary　condition　of　slope　dynamic　failure　and　the　mutation　of　displacement　and　acceleration　response　may　be　regarded　as　the　criterion　of　estimating　slope　dynamic　failure.　As　to　the　three　characteristics　of　the　slope　dynamic　failure,　the　shaking　table　model　test　conforms　well　to　the　numerical　simulations,　validating　that　the　results　of　shaking　table　model　test　are　reasonable　and　the　numerical　simulation　method　is　reliable.