A　full　restart　method　of　numerical　simulation　and　Lagrangian　formula　are　used　to　simulate　the　fragment　of　rock　and　the　vibration　of　slope　to　investigate　the　fragment　of　rock　and　the　blasting　vibration　of　large-stiff　slope　during　multi-hole　blasting.　The　simulated　results　are　agreement　with　the　experimental　results.　The　results　indicate　that　the　full　restart　method　of　numerical　simulation　and　Lagrangian　formula　can　be　used　to　describe　the　multi-hole　blasting　vibration　of　large-stiff　slope.　The　superposition　of　seismic　waves　may　intensify　the　blasting　vibration　of　slope.　©,　2014,　China　Ordnance　Society.　All　right　reserved.