A percutaneous absorption agent delivery device with: a solvent-impermeable cover film that has a first layer and a second layer, which are integrally continuous via a first fold and are superimposed, a non-seal region and a seal region are formed between the first layer and the second layer, the non-seal region disposed along the first fold, the seal region to surround the outer peripheral section of the non-seal region except for the section along the first fold, and an endless cut portion forming the non-seal region formed in the cover film； a percutaneous absorption agent carrying member is disposed in the non-seal region between the first layer and the second layer, and fixed to the cover film on the inner side of the cut portion； and an adhesive sheet that is detachably affixed to the outer surface of the cover film.
