To　quantitatively　analyze　mitigation　of　fatigue-induced　reflective　cracking　in　asphalt　pavement　through　geotextiles,　impact　of　geotextile　on　stress　and　strain　distribution　in　asphalt　layer,　stress　and　strain　distribution　in　geotextile　were　calculated　using　FEM.　Then　variety　in　fatigue　life　of　pavement　was　quantitatively　researched.　Fatigue　life　of　asphalt　layer　is　extended　because　tensile　stress　in　bottoms　of　asphalt　layer　is　reduced　prominently　by　geotextile.　The　bigger　geotextile　elastic　modulus　is,　the　more　tensile　stress　in　bottoms　of　asphalt　layer　reduces,　and　the　longer　fatigue　life　of　pavement　extends.　Stress　distributes　over　about　12　cm　in　geotextile　above　base　crack,　and　the　magnitude　of　stress　is　far　lower　than　geotextile　tensile　strength.　It　is　an　effective　method　to　use　geotextile　for　mitigating　fatigue-induced　reflective　cracking　in　asphalt　pavement.　In　practice,　elastic　modulus　corresponding　with　the　potential　maximum　stress　should　be　considered　when　choosing　getextile.