A　novel　flat　steel　plate-concrete-corrugated　steel　plate　(FS-C-CS)　sandwich　panel　was　proposed　for　resisting　impact　load.　The　failure　mode,　impact　force　and　displacement　response　of　the　FS-C-CS　panel　under　impact　loading　were　studied　via　drop-weight　impact　tests.　The　combined　global　flexure　and　local　indentation　deformation　mode　of　the　FS-C-CS　panel　was　observed,　and　three　stages　of　impact　process　were　identified.　Moreover,　the　effects　of　corrugated　plate　height　and　steel　plate　thickness　on　the　impact　responses　of　the　FS-C-CS　panels　were　quantitatively　analysed,　and　the　impact　resistant　performance　of　the　FS-C-CS　panel　was　found　to　be　generally　improved　on　increasing　corrugated　plate　height　and　thickness　in　terms　of　smaller　deformation　as　well　as　larger　impact　force　and　post-peak　mean　force.　The　Finite　Element　(FE)　model　of　the　FS-C-CS　panel　under　impact　loading　was　established　to　predict　its　dynamic　response　and　further　reveal　its　failure　mode　and　impact　energy　dissipation　mechanism.　The　numerical　results　indicated　that　the　concrete　core　and　corrugated　steel　plate　dissipated　the　majority　of　impact　energy.　In　addition,　employing　end　plates　and　high　strength　bolts　as　shear　connectors　could　prevent　the　slip　between　steel　plates　and　concrete　core　and　assure　the　full　composite　action　of　the　FS-C-CS　panel.