By　using　three-dimensional　finite　element　analysis,　structural　behavior　of　early-age　Portland　cement　concrete　pavement　(PCCP)　with　asphalt　interlayers　was　studied.　The　effects　of　the　asphalt　interlayers　on　the　formation　process　as　well　as　the　early-age　behavior　of　PCCP　were　analyzed　with　respect　to　its　mechanical　properties.　The　analysis　results　show　that　the　combined　action　of　built-in　temperature　in　early　age,　concrete＇s　creep,　hardening　process　and　the　environment　fields　cause　more　significant　early-age　curling　and　interfacial　debonding　at　the　slab　corners.　Such　effects　were　however　neglected　by　traditional　theories.　PCCP　with　asphalt　interlayers　has　smaller　debonding　areas　and　larger　curling　deformation　compared　with　the　directly-overlaid　pavement　without　asphalt　interlayers.　In　addition,　combining　with　specific　heavy　traffic,　structure　effect　of　the　early-age　curling　and　debonding　may　have　an　unfavorable　influence　upon　fatigue　life　of　pavement　structures　with　asphalt　interlayers.　On　the　basis,　it　is　suggested　to　use　bases　with　larger　stiffness　in　PCCP　with　asphalt　interlayers.　In　particular,　the　thickness　of　the　asphalt　interlayers　should　be　less　than　30　mm,　and　the　elastic　modulus　of　asphalt　mixture　should　be　of　low　values.　©　2018,　Engineering　Mechanics　Press.　All　right　reserved.