The　performance　of　the　recycled　asphalt　mixture　can　be　changed　because　the　old　asphalt　mixture　has　variability.　This　paper　researched　the　performance　of　recycled　asphalt　mixture,　such　as　high-temperature　stability,　low-temperature　crack　resistance　and　water　stability　and　its　affection　on　the　variability　of　the　old　asphalt　mixture　by　using　Marshall　orthogonal　experimental　design　and　statistics　methods.　The　purpose　is　to　find　out　a　scientific　method　to　control　the　performance　of　the　recycled　asphalt　mixture.