An　effective　stress　absorption　layer　can　reduce　the　reflection　crack.　It　can　help　to　extend　the　service　life　of　road.　In　this　research,　an　enhanced　stress　absorption　layer　of　slow　crack　(ESALOSC)　is　proposed　and　compared　with　the　ordinary　SBS　modified　asphalt　stress　absorbing　layer.　The　strain　data　of　two　stress　absorption　layers　under　different　loads,　speeds　and　temperatures　are　collected　by　embedding　sensors　in　the　road,　and　the　dynamic　response　laws　of　the　two　stress　absorption　layers　under　different　conditions　are　analyzed.　The　results　show　that　the　asphalt　pavement　is　a　viscoelastic　body　and　the　measured　results　are　consistent　with　the　theoretical　solution　of　layered　elasticity:　both　stress　absorbing　layers　are　subjected　to　pressure.　According　to　the　comparison　between　dynamic　overload　test　and　static　overload　test,　the　strain　deviation　between　the　two　sections　increases　from　11.6%　of　static　load　to　25.2%　of　dynamic　load　(40　km/h).　It　indicates　that　the　reinforced　effect　of　geogrid　is　more　obvious　under　dynamic　load.　By　establishing　the　relationship　between　vehicle　speed　and　dynamic　response,　a　vehicle　speed　and　dynamic　response　model　for　the　ESALOSC　is　proposed.　Based　on　the　test　data　measured　at　four　temperatures,　a　model　of　the　temperature　and　dynamic　response　in　the　ESALOSC　is　proposed.　The　accuracy　and　effectiveness　of　the　two　models　are　verified　by　comparing　with　other　experimental　results.　The　ESALOSC　is　of　great　significance　for　improving　the　crack　resistance　of　road.　The　research　results　provide　technical　support　and　theoretical　model　for　the　development　of　long-life　pavement　in　China.