PROBLEM TO BE SOLVED: To provide a manufacturing method of a minute hollow projection tool which can accurately manufacture a shape of the minute hollow projection tool with an aperture, and efficiently manufacture the minute hollow projection tool capable of stably supplying medicine through the aperture that is hardly crushed when puncturing the skin.SOLUTION: A manufacturing method of a minute hollow projection tool 1 with an aperture 3h comprises a projection formation process in which a convex part 11 including heating means is contacted with one surface 2D side of a base material sheet 2A, the contacted portion TP of the base material sheet 2A is softened by heat, and the convex part 11 is stuck toward the other face 2U side of the base material sheet 2A so as to form a minute hollow projection part 3 projecting from the other face 2U side of the base material sheet 2A. The projection formation process uses a receiving member 13 including a concave part 131 arranged in the other face 2U side of the base material sheet 2A, and moves the convex part 11 until the convex part 11 is contacted with a peripheral wall of the concave part 131 in the receiving member 13 so that the aperture 3h is formed at a position deviated from the tip of the minute hollow projection part 3.SELECTED DRAWING: Figure 7【課題】開孔部を有する微細中空突起具の形状を精度良く製造でき、皮膚に穿刺する際に潰れ難い開孔部を通して剤を安定的に供給可能な微細中空突起具を効率良く製造できる微細中空突起具の製造方法を提供すること。【解決手段】開孔部３ｈを有する微細中空突起具１の製造方法は、基材シート２Ａの一面２Ｄ側から、加熱手段を備える凸型部１１を当接させて、基材シート２Ａの当接部分ＴＰを熱により軟化させながら、基材シート２Ａの他面２Ｕ側に向かって凸型部１１を刺してゆき、基材シート２Ａの他面２Ｕ側から突出する微細中空突起部３を形成する突起部形成工程を備える。突起部形成工程は、基材シート２Ａの他面２Ｕ側に配された凹部１３１を有する受け部材１３を用い、受け部材１３の凹部１３１の周壁に凸型部１１が接触するまで凸型部１１を移動させて、微細中空突起部３の先端からずれた位置に開孔部３ｈを形成する。【選択図】図７
