To　improve　the　road-holding　and　ride-comfort　of　vehicles,　a　new　method　is　presented　on　the　basis　of　dual　active　aerodynamic　control　(DAAS).　Two　active　aerodynamic　surfaces　are　properly　installed　on　sprung　mass　and　unsprung　mass　respectively　for　generating　lift　forces　that　independently　control　the　vertical　acceleration　of　sprung　mass　and　unsprung　mass.　A　YOUN　control　law　of　is　used　as　the　control　algorithm　of　the　DAAS　system　and　the　active　suspension　(AS)　system.　The　performance　of　the　proposed　control　algorithm　was　evaluated　in　Matlab/Simulink.　Simulation　results　show　that,　by　the　comparisons　between　passive　suspension(PS),　active　suspension(AS)　and　DAAS,　DAAS　can　be　significantly　improve　the　road　holding　and　ride　comfort　of　vehicles　at　the　same　time,　and　can　response　faster　than　AS　and　PS.