The purpose of the present invention is to provide an adhesive patch that is obtained by blending ropinirole, which is in a free form, in an adhesive base, said adhesive patch having good and lasting percutaneous absorption, excellent medicinal ingredient stability and excellent adhesiveness. Provided is a transdermal adhesive patch that is obtained by blending ropinirole, which is in a free form, in an adhesive base that is obtained by compounding a styrene-isoprene-styrene block copolymer (SIS), a softening agent and one or more kinds of tackifying resins each containing a rosin resin. This transdermal adhesive patch is characterized in that the blending ratio of the rosin resin to the ropinirole in a free form, namely (the blending weight of the rosin resin)/(the ropinirole in a free form) is 3.5-8Ø In particular, a ropinirole-containing adhesive patch wherein the rosin resin is a hydrogenated rosin glycerol ester and the softening agent is a liquid paraffin.
