During　its　service　life,　asphalt　pavement　is　affected　by　environmental　factors　such　as　heat,　light,　oxygen　and　moisture.　The　asphalt　binder　ages,　resulting　in　a　decrease　in　the　performance　of　the　asphalt　pavement.　Therefore,　the　development　and　application　of　an　asphalt　anti-aging　agent　is　of　great　significance.　In　this　paper,　the　road　performance　of　the　developed　asphalt　binder　liquid　anti-aging　agent　was　verified　in　the　two　scales　of　asphalt　binder　and　asphalt　mixture,　respectively.　Firstly,　a　simple　aging　test　method　was　proposed　using　needle　penetration　as　the　evaluation　index.　The　aging　time　of　the　simple　aging　method　was　determined　to　be　20　h.　Secondly,　the　addition　of　anti-aging　agents　improved　the　low-temperature　performance　of　the　asphalt　binder　and　had　a　less　adverse　effect　on　the　high-temperature　performance.　The　test　values　of　needle　penetration　and　the　ductility　of　the　asphalt　binder　increased　and　the　values　of　the　softening　point　decreased.　And　the　road　performance　of　the　anti-aging　asphalt　mixture　basically　met　the　specification　requirements.　The　addition　of　the　anti-aging　agent　improved　the　low-temperature　performance　of　the　aged　asphalt　mixture　by　16%,　which　is　of　great　significance　for　improving　the　service　life　of　asphalt　pavement.　©　2024　by　the　authors.