Application　of　stabilizing　piles　is　the　main　reinforcement　measure　of　the　slope.　In　research,　stabilizing　piles　are　often　simplified　to　elastic　or　elastic-plastic　structures,　which　do　not　reflect　the　failure　caused　by　shear　forces　and　bending　moments.　To　study　the　instability　mechanism　of　the　stabilized　pile　slope,　a　correction　module　was　established,　which　simulated　the　fracture　by　adding　the　failure　stage.　Based　on　the　Wenchuan　earthquake　investigation,　the　selection　principle　of　failure　criterion　was　analyzed.　The　new　model　was　applied　to　the　dynamic　response　analysis.　The　influence　of　pile　failure　on　the　slope　was　explored　from　the　indexes　of　maximum　shear　force,　acceleration,　spectrum,　and　displacement.　Besides,　the　deformation　coordination　relationship　between　piles　in　the　three-dimensional　slope　was　discussed　under　the　fracture　frame.　The　results　show　that:　the　fracture　effect　can　be　achieved　by　constructing　and　calling　the　correction　module.　The　modified　model　has　two　stages.　Once　the　internal　force　reaches　the　limit　value,　the　anti-sliding　effect　of　the　pile　disappears.　The　failure　will　cause　a　sudden　change　of　acceleration,　higher　frequency,　and　greater　residual　displacement.　The　fracture　sequence　is　the　reflection　of　the　relationship　between　the　stabilizing　piles.　The　neglect　of　pile　interaction　may　lead　to　the　underestimation　of　landslide　risk.　©　2024　Chinese　Vibration　Engineering　Society.　All　rights　reserved.