The organic montmorillonite(OMMT) was obtained via intercalation of Na montmorillonite by organic intercalator. Then the ultraviolet absorber(UVA)intercalated OMMT was prepared with different types of UVA and OMMT. The structure of UVA intercalated OMMT was characterized by X ray diffraction(XRD) test. The UVA intercalated OMMT modified asphalt was prepared via melt blending. The physical properties, thermo oxidative aging resistance and ultraviolet(UV) aging resistance of the UVA intercalated OMMT modified asphalt were investigated by conventional physical properties test, thin film oven test(TFOT) and UV aging test, respectively. Based on these, the effect of different types of UVA intercalated OMMT on aging resistance of asphalt was evaluated. The results show that both the thermo oxidative and UV aging resistance of asphalt can be improved by the UVA intercalated OMMT, among which the UV328 intercalated OMMT modified asphalt and UV326 intercalated OMMT modified asphalt show better aging resistance. The reason is that the layered structure of OMMT prevents heat and oxygen from diffusing into the asphalt. On the other hand, the intercalation rate of UV328 intercalated OMMT and UV326 intercalated OMMT is larger, which enhances the synergistic effect on shielding and absorbing UV light of the UVA intercalated OMMT.