On　the　basis　of　the　analysis　of　domestic　and　international　asphalt　pavement　design　theory　and　rut　forecast　model,　it　is　proposed　that　rut　should　be　given　as　a　control　index　in　the　design　process　in　order　to　reduce　the　early　damage　of　the　asphalt　pavement.　Then　an　example　is　given　in　the　form　of　a　forecast　in　the　whole　process,　After　analyzing　the　result,　it　is　shown　that　the　road　is　beyond　the　control　of　the　early　damage　as　the　only　design　index　is　deflection.　So　it　is　proposed　that　the　Asphalt　Pavement　Design　Standards　should　take　in　the　rut　as　an　index.　It　is　expected　that　asphalt　pavement　design　theory　can　be　improved　and　the　asphalt　pavement　can　have　a　relatively　long　life　expectancy.