The　impact　of　surface　texture　on　the　light　extraction　efficiency　was　discussed.　Textured　surface　of　light-emitting　diodes(LEDs)　can　provide　substantial　improvement　in　LEDs,　which　is　analyzed　both　theoretically　and　experimentally.　The　enhancement　of　the　LED　output　depends　on　the　surface　condition.　A　P-side-up　AlGaInP-based　LED　was　patterned　by　using　a　dry　etching　process,　and　the　light　intensity　of　LEDs　was　increased　by　20.1%　at　an　injection　current　of　20　mA　in　a　etching　depth　of　0.15　mu　m　and　a　periodic　distance　of　10　mu　m　mesh-type　texture.　The　increase　in　light　intensity　is　due　to　the　reduction　of　the　internal　light　reflection　and　the　growing　probability　of　photon　finding　the　escape　cone.