Honeycomb　metal　and　sandwich　structure　is　a　new　type　of　lightweight　high-strength　structural　and　functional　composite　structures,　which　is　widely　applied　in　structural　lightweight　design　and　impact　protection.　In　this　paper,　a　dynamic　impact　numerical　model　of　honeycomb　sandwich　panel　(HSP)　was　established　by　using　the　ABAQUS/Explicit　software.　The　numerical　calculated　results　are　in　good　agreement　with　experimental　results.　On　this　basis,　the　dynamic　responses　of　HSPs　under　repeated　impact　loads　were　investigated.　The　time　histories　of　impact　force　and　plastic　deformation,　the　impact　force-displacement　curves　as　well　as　the　permanent　deflections　were　obtained.　The　influences　of　impact　energy　and　the　wall　thickness　of　honeycomb　cells　as　well　as　the　thickness　distribution　of　face　sheet　on　the　dynamic　responses　and　energy　absorption　performances　of　HSPs　were　further　performed.　Numerical　results　show　that,　with　the　increase　of　impact　numbers,　the　bending　deflections　of　both　top　and　bottom　face　sheets　accumulate　gradually.　The　compressive　deformations　of　the　honeycomb　cores　increase　gradually　and　finally　the　densification　phenomenon　appears,　resulting　in　the　enhancement　of　flexural　stiffness　and　the　reduction　of　bending　deformation　increment　as　well　as　the　decrease　of　the　impact　energy　absorption.　In　addition,　the　plastic　deformation　accumulation　and　energy　absorption　performances　of　HSPs　under　repeated　impact　loads　can　be　effectively　modulated　by　the　wall　thickness　of　honeycomb　cells　and　the　thickness　distribution　of　face　sheet.　©　2021,　Editorial　Office　of　Journal　of　Vibration　and　Shock.　All　right　reserved.