The　blast　resistance　of　precast　concrete　(PC)　slabs　was　studied　by　field　blast　test　and　numerical　simulation.　A　field　blast　test　of　PC　slabs　under　different　scaled　distances　(1,　0.8,　and　0.6　m/kg1/3)　was　conducted,　and　the　incident　and　reflected　overpressures,　displacement,　and　damage　distribution　of　the　PC　slabs　were　measured.　The　results　were　compared　with　the　test　results　of　ordinary　reinforced　concrete　(RC)　slabs　at　the　same　scaled　distance.　The　incident　and　reflected　overpressures　were　consistent　with　the　CONWEP　empirical　formula,　which　verified　the　effectiveness　of　the　blast　load　in　the　test.　Under　the　same　working　condition,　the　maximum　displacement　of　the　PC　slabs　was　greater　than　that　of　the　RC　slabs.　Both　slab　types　exhibited　bending　failure,　but　their　crack　distributions　were　obviously　different.　The　number　of　cracks　of　the　PC　slabs　was　large,　the　width　was　narrow,　and　the　distribution　was　more　uniform.　The　PC　slabs　could　dissipate　the　blast　shock　wave　evenly.　No　obvious　cracks　were　observed　in　the　laminated　surface　of　the　PC　slabs,　thereby　meeting　the　shear　resistance　requirements.　The　dynamic　response　of　the　PC　slabs　under　blast　load　was　studied　using　the　CONWEP　method,　and　the　validity　of　the　finite　element　(FE)　model　was　verified　with　the　LS-DYNA　software.　©　2023　Elsevier　Ltd