In　order　to　be　used　as　paving　asphalts,　bio-oil　modified　asphalt　binders　(biobinders)　should　provide　adequate　functionality　over　a　wide　temperature　spectrum　in　resisting　permanent　deformation　and　fatigue　cracking.　The　objectives　of　this　study　were　to　evaluate　the　rheological　behavior　and　performance　of　biobinders　under　intermediate　and　high　temperatures,　and　to　assess　the　effects　of　bio-oil　modification　under　a　variety　of　oxidative　aging　conditions　for　aging　susceptibility　of　the　biobinders.　The　rheological　and　performance　characterization　was　based　on　frequency　sweep,　linear　amplitude　sweep,　elastic　recovery,　and　multiple　stress　creep　recovery　tests.　Experimental　results　indicated　that　an　increase　in　the　bio-oil　percentage　provided　improved　fatigue　cracking　performance　but　reduced　rutting　resistance　and　elastic　recovery　potential　at　all　aging　levels.　Oxidative　aging　produced　the　reversed　effects　for　both　the　control　and　biobinders.　Use　of　bio-oil　appeared　to　abate　the　aging　susceptibility　in　terms　of　fatigue　cracking　resistance,　but　also　rendered　the　asphalt　binders　less　resistant　to　aging　with　regard　to　elastic　recovery　potential.　The　aging　susceptibility　of　the　petroleum　asphalt　and　biobinders　were　similar　concerning　the　rutting　resistance.　The　correlations　among　the　obtained　performance　parameters　verified　that　the　fatigue　cracking　resistance,　rutting　resistance,　and　elastic　recovery　property　of　the　biobinders　at　all　aging　levels　were　generally　in　line　with　those　of　the　petroleum　asphalt,　and　that　the　biobinders　could　be　potentially　utilized　as　sustainable　paving　asphalts.