The present invention provides a microneedle said microneedle smoothly stabbing into the skin of a patient and therefore being highly safe and convenient and enabling painless administration of a definite drug and a microneedle array. A microneedle and a microneedle array said microneedle comprising a pyramidal base part and a tip part located thereon wherein the vertical angle of the tip is in the range of 15 60 the bottom face diameter of the tip part is in the range of 1 20 µm and the following requirement is satisfied: H/D=5 (1) wherein H represents the overall height and D represents the bottom face diameter of the pyramidal base part.
