Greenhouse　gas　emissions　are　a　major　concern　in　sectors　including　industry,　agriculture,　and　transportation.　The　main　sources　of　carbon　dioxide　emissions　are　fossil　fuel　combustion　and　the　utilization　of　secondary　energy　sources.　The　construction　process　of　road　engineering　requires　a　substantial　energy　consumption.　This　stage　plays　a　critical　role　in　the　transportation　industry＇s　greenhouse　gas　emissions　and　pollution,　necessitating　intensified　efforts　to　mitigate　carbon　emissions.　This　study　provided　a　summary　of　the　theoretical　foundation,　calculation　methods,　and　selection　of　carbon　emissions　factors　in　asphalt　pavement　construction.　Having　comprehended　the　current　environmental　impact　of　asphalt　pavement　construction,　the　study　summarized　the　principles　and　methods　for　quantitatively　calculating　carbon　emissions　in　the　future.　The　reduction　of　carbon　emissions　in　road　construction　is　highly　significant.