The present invention relates to a microneedle system which improves the transfer of drugs by using capillary force, and more particularly to a microneedle system which includes a chamber for storing and supplying drugs delivered into the skin through microneedles； And a microneedle attached to the chamber for delivering medicament supplied from the chamber into the skin, wherein the microneedle has at least a wing for opening a gap for injecting the drug into the surface of the skin, And the grooves formed in the vertical direction between the wings have a V-shaped cross-section. According to the microneedle system using the capillary force proposed in the present invention, the wings formed on the microneedles cause a gap in the skin, and the capillary force is applied to the gap between the openings, 'Is injected into the skin along the grooves of the shape, and the use of the capillary force without an additional external pressure generating device or pump causes injection of the injected liquid within a few seconds and backflow of the drug out of the skin By absorbing quickly into the skin, the risk of infections can be significantly reduced, and pain can be reduced, injected with the correct amount of injector efficiently, quickly and conveniently. In addition, according to the present invention, there is provided a drug delivery system including a chamber for storing and supplying a drug, wherein the chamber includes a plurality of microholes respectively positioned between wings of the micro needle and the size of the microhole is determined according to the kind of the drug , A certain amount of drug flows between the wings formed on the micro needle, and the capillary force is able to get into the groove of the skin by the capillary force quickly, thereby making it possible to utilize the capillary force more efficiently, . In addition, according to the present invention, since at least three or more wings of the micro needle are formed, the injection rout
