The sodium silicate, organic silicone resin and silane coupling agent were used to enhance the performances of recycled aggregate(RA). The performances of RAs with and without enhancement were investigated, including crushing value, abrasion value, water absorption and adhesion in order to select out the best enhancer. The surface microscopic morphology of RAs with and without enhancement was observed by SEM and further the enhancing mechanism of enhancer on RA was investigated. The recycled coarse aggregate and natural fine aggregate were used to make up asphalt treated recycled aggregate(ATRA), and laboratory experiments were conducted including rutting test, water stability test and low temperature bending test, and then the road performances of ATRAs were investigated. The results show that RA has large crushing value, abrasion value and water absorption and poor adhesion due to the voids and micro cracks that exist in RA. The enhancing effect of organic silicone resin on comprehensive performances of RA is superior over that of sodium silicate and silane coupling agent. Most voids in RA are effectively blocked and micro cracks are repaired in a certain extent when RA is enhanced by organic silicone resin, and the anti crushed and adhesion of RA are improved and the water absorption of RA is reduced. When the RA without enhancement is used in ATRA, the average bending strain, residual stability and freeze thaw splitting strength ratio of ATRA cant meet the requirements of JTG F40—2004. Moreover, When the RA enhanced by 2%(by mass) organic silicone resin is used in ATRA, the road performances of ATRA can be greatly improved and meet regulatory requirements of JTG F40—2004.