Due　to　the　high　cost　and　extensive　resources　needed　for　field　blast　test,　it　is　more　productive　to　carry　out　the　numerical　simulation　of　the　new　multi-layer　pavement　system　subject　to　blast　load.　In　this　paper,　a　numerical　model　was　developed　to　simulate　the　dynamic　behavior　of　the　new　multi-layer　pavement　system　subject　to　blast　load.　This　multi-layer　pavement　system　consisted　of　asphalt　concrete　(AC)　layer　reinforced　with　geogrid,　followed　by　high　strength　concrete　(HSC)　layer　and　then　engineered　cementitious　composites　(ECC)　layer,　with　consideration　their　relative　advantages　in　terms　of　strength　and　relative　ductility.　A　3D　numerical　model　for　this　multi-layer　pavement　system　subject　to　blast　load　was　developed　by　using　LSDYNA.　The　suitability　of　the　existing　material　models　was　discussed.　The　key　parameters　of　the　selected　material　models,　such　as　interfacial　properties　and　dynamic　increase　factor,　were　calibrated　and　quantified　through　laboratory　tests　(i.e.　dynamic　and　static).　A　field　blast　test　on　the　new　multi-layer　pavement　system　was　also　conducted.　Field　measurements　from　the　field　test　were　used　as　a　validation　for　the　proposed　numerical　model.　The　simulation　shows　that　the　numerical　results　are　in　good　agreement　with　the　field　blast　test　measurements　in　terms　of　damage　pattern,　crater　diameter,　acceleration　and　total　pressure　cell　readings.　The　factors　that　might　enhance　the　blast　resistance　of　the　new　multi-layer　pavement　system　under　various　blast　loading　can　be　further　investigated　through　the　parametric　study　on　the　calibrated　numerical　model.　©　2016,　Editorial　Department　of　Journal　of　Beijing　University　of　Technology.　All　right　reserved.