Transparent　conductive　current-spreading　layer　is　important　for　quantum　efficiency　and　thermal　performance　of　light-emitting　diodes　(LEDs).　The　increasing　demand　for　tin-doped　indium　oxide　(ITO)　caused　the　price　to　greatly　increase.　Super-aligned　carbon　nanotubes　(SACNTs)　and　Au-coated　SACNTs　as　current-spreading　layer　were　applied　on　AlGaInP　LEDs.　The　LEDs　with　Au-coated　SACNTs　showed　good　current　spreading　effect.　The　voltage　bias　at　20　mA　dropped　about　0.15　V,　and　the　optical　power　increased　about　10%　compared　with　the　LEDs　without　SACNTs.