In　order　to　determine　the　appropriate　traffic　grade　and　the　reasonable　layered　structure　for　foam　asphalt　cold　recycled　mixture,　the　authors　conducted　experiment　research　for　the　road　performance　of　foam　asphalt　cold　recycled　mixture.　And　it　is　showed　that　foam　asphalt　cold　recycled　mixture　can　be　used　in　the　base　of　all　kinds　of　grade　roads.　According　to　the　current　standards　used　and　typical　cases　in　our　country,　the　authors　drafted　reasonable　pavement　structure　thickness　combinations　of　different　traffic　grade　asphalt　pavements　and　used　ANSYS　to　establish　a　model　for　simulating.　The　surface　deflection　and　tensile　stress　of　foundation　base　of　different　thickness　combinations　were　calculated.　Then,　according　to　figure　analysis,　it　is　showed　that　the　modulus　of　old　pavement　and　thickness　of　each　layer　could　have　an　influence　on　the　performance　of　foam　asphalt　cold　recycled　pavement.　And　it　is　showed　that　modulus　of　old　pavement　is　an　important　factor　impacting　the　performance　of　complexly　repaired　asphalt　pavement.　By　inversely　calculating　the　number　of　accumulative　standard　axle　loads　and　comparing　with　the　traffic　grade　standards　of　our　country,　the　reasonable　pavement　structure　combination　was　proposed　for　foam　asphalt　cold　recycled　mixture　used　in　complex　road　repair　project.