A microneedle array having performance that can be used in place of a syringe is provided. In a microneedle array in which a plurality of tapered microneedles made of resin 10 are dispersedly arranged on a pedestal 11, part of the side surfaces of the microneedles 10 are defined as outer surfaces 12 and 13, and the tips are non-flat. Alternatively, a plurality of flat puncture portions 14 and 15 are provided, and are surrounded by inner side surfaces 16 and 17 of the respective puncture portions 14 and 15 so as to open forward and sideward along the axis of the microneedle 10. A storage portion 19 capable of holding a medicine is formed, and the height of the puncture portion 15 is higher than the height of the puncture portion 14. Here, it is preferable that the maximum difference between the heights of the puncture units 14 and 15 is in the range of 0.01 to 0.4 of the height of the puncture unit 15 having the highest height. [Selection] Figure 1【課題】注射器の代わりに使用可能な性能を備えたマイクロニードルアレイを提供する。【解決手段】先細になった複数の樹脂製のマイクロニードル１０が台座１１上に分散配置されたマイクロニードルアレイにおいて、マイクロニードル１０の側面の一部を外側面１２、１３として、先端が非平坦又は平坦となった複数の穿刺部１４，１５が設けられ、各穿刺部１４，１５の内側面１６，１７に囲まれてマイクロニードル１０の軸心に沿って先側及び側方向に開口して薬剤の保持が可能な収納部１９が形成され、穿刺部１５の高さが穿刺部１４の高さより高くなっている。ここで、穿刺部１４，１５の高さの最大差は、高さが最も高い穿刺部１５の高さの０．０１～０．４の範囲にあることが好ましい。【選択図】図１
