Benzotriazole （UV326） light stabilizer intercalated layered double hydroxides （LDHs） was prepared by intercalation of UV326 into LDHs， and its effect on the UV aging resistance of matrix asphalt was explored. The results show that compared to composite UV326/LDHs modified asphalt， the compatibility of UV326 intercalated LDHs with asphalt and the absorption ability of ultraviolet light have been greatly improved. When the content of UV326 intercalated LDHs is 1%， it has the best effect on improving the conventional performance， high temperature stability and fatigue resistance of asphalt. When the content is high， the degradation effect of the UV326 intercalated LDHs on the elastic properties， fatigue properties and UV aging resistance of asphalt is weaker than that of composite UV326/LDHs.