1. microneedle comprising a truncated cone and the front end portion thereon having an angle (A) of the front end of the top in the range of 15-60 ° and a diameter (B) of the front end in the range of 1-20 microns, and satisfies the following expression (1), H / D ≥ 5 (1) (H: overall height, D: diameter of the bottom surface of the truncated portion) .2. Microneedle according to claim 1, which has a surface roughness represented by the following expression (2) is 5 nm ≤ Rz ≤ 10 microns (2) (Rz: maximum height of surface roughness) .3. Microneedle according to claim 1, which has a surface roughness represented by the following expression (3), 50 nm ≤ Rz ≤ 5 mm (3) (Rz: maximum height of surface roughness) .4. Microneedle of Claim 1 wherein micro-needle has a total height (H) 300-700 microns, and a truncated part has a lower surface diameter (D) 10-200 mkm.5. Microneedle according to claim 1, which consists of thermoplastic resin as a main komponenta.6. Microneedle according to claim 5, wherein the thermoplastic resin is at least one member selected from the group consisting of polycarbonate, polypropylene, cycloolefin polymer, cycloolefin copolymer, polyethylene terephthalate, acrylic resin, polyphenylene sulfide, polyether ether ketone, polybutylene terephthalate, polybutylene naphthalate and polietilennaftalata.7. Microneedle according to claim 1, which is formed of a biodegradable resin as a main komponenta.8. Microneedle according to claim 7, wherein the biodegradable resin is at least one member selected from the group consisting of polyglycolic acid, polylactic acid, stereokompleksnoy polylactic acid, a polycarbonate resin obtained from a plant and polibutilensuktsinata.9. microneedles matrix comprising sets1. Микроигла, содержащая усеченный конус и переднюю концевую часть на нем, имеющую угол (A) вершины переднего конца в диапазоне 15-60° и диаметр (B) переднего конца в диапазоне 1-20 мкм, и удовлетворяющая следующему выражению (1),H/D ≥ 5 (1)(H: Полная высота
