In　order　to　study　the　sound　absorption　performance　of　different　types　of　asphalt　pavement,　a　standing　weve　tube　experiment　is　carried　out　to　research　the　average　sound　absorption　coefficient　from　three　aspects　of　Asphalt　additives,　mixture　gradation,　road　surface　characteristics.　The　results　show　that,　the　sound　absorption　effects　of　discontinuous　gradation　is　better　than　the　sound　absorption　effects　of　Continuous　gradation,　and　the　asphalt　with　additives　can　improve　the　sound　absorption　performance.　When　the　porosity　is　larger,　the　average　sound　absorption　coefficient　becomes　larger　and　the　sound　absorption　result　becomes　better.　The　type　of　the　original　road　has　a　direct　influence　on　the　average　sound　absorption　coefficient　of　Micro-surfacing　pavement.　When　the　average　sound　absorption　coefficient　of　the　original　roads　is　larger,　the　average　sound　absorption　coefficient　of　Micro-surfacing　pavement　is　larger　and　the　sound　absorption　effects　is　better;　the　peak　value　of　average　sound　absorption　coefficient　for　Micro-surfacing　pavement　has　the　trend　of　1200　Hz-1600　Hz　frequency.