A microneedle sheet according to an embodiment includes a plurality of microneedles formed on a sheet generally along a principal surface of the sheet. The material of the microneedles is selected from among hydroxypropyl methylcellulose, hydroxypropyl cellulose, polyvinyl alcohol, and a graft copolymer of polyvinyl alcohol and polyethylene glycol. The microneedles are raised from the principal surface by bending the sheet, and the raised microneedles pierce skin.一實施形態之微型針貼布，係具備大致沿著貼布的主面而形成於該貼布之複數個微型針。微型針的材料，選自羥丙基甲基纖維素、羥丙基纖維素、聚乙烯醇、及聚乙烯醇與聚乙二醇之接枝共聚物。藉由彎折貼布，使微型針從主面立起，且立起後之該微型針刺入皮膚。
