An inkjet head comprises a pressure chamber; a nozzle plate including a first surface at the side of the pressure chamber, a second surface opposite to the first surface, a first nozzle formed into a frustum which penetrates the first surface and the second surface and the diameter of which decreases as it goes closer to the second surface, and a second nozzle formed into a frustum which is the same as the frustum of the first nozzle; and a driving element configured adjacent to the pressure chamber to eject droplets from the first nozzle and the second nozzle simultaneously; wherein the part of the first nozzle on the first surface is integrally connected to the part of the second nozzle on the first surface, and the part of the first nozzle on the second surface is separated from the part of the second nozzle on the second surface.