In the modern days everything this world is getting small but has more powerful and desired functions than its predecessors. In the same way Micro and Nano technologies of drug delivery have been emergent to meet the desired needs of the drug in comparatively smaller doses and with least inconvenience of administration to the patient. This article quotes about the various advantages of Microneedles over the conventional dosage forms with less pain and required target action. Microneedles are typically needle like structures of micro sizes that are dissolvable and are pain less method of injecting the drug into the epithelial layers. The patch of microneedles that are 100–1000 μm in size poke through the skin and allow micron-scale drugs to pass into the blood stream. This proves a carrier in the transport of drugs to the skin deep into the systemic circulation. This article discusses about the types, mechanism of action, methodology, merits and demerits and approaches of the microneedles.