A packaging structure (100) for a patch includes a first and second base materials (120, 130) which have a peripheral edge part laminated with each other, and the patch is included therein. The first and second base materials (120, 130) have a first to forth sides (121 to 124, 131-134). At least one of the first and second base materials (120, 130) has a first to third opening parts (125 to 127, 135 to 137). The first to third opening parts (125 to 127, 135 to 137) guides so as to open toward the inner peripheral edge (120c1, 120c2, 120c4, 130c1, 130c2, 130c4) of the sealing part (120c, 130c).
