Provided is a felbinac-containing external patch that shows a high drug release property and also low skin irritation, and is capable of exerting high drug stability. This felbinac-containing external patch is characterized in that L-menthol is not contained, and felbinac having an average particle size of 5 µm or more but less than 100 µm is dispersed to mix with an adhesive base that is composed of styrene-isoprene-styrene block copolymer, alicyclic saturated hydrocarbon resin, softener, and diethyl sebacate, specifically, 0.1 to 10% by weight of felbinac having an average particle size of 5 µm or more but less than 100 µm is dispersed to mix with an adhesive base that is composed of 10 to 30% by weight of styrene-isoprene-styrene block copolymer, 10 to 50% by weight of alicyclic saturated hydrocarbon resin, 10 to 75% by weight of softener, and 0.1 to 10% by weight of diethyl sebacate.
