A method of manufacturing an inkjet head includes forming a plurality of electrodes at predetermined positions on an upside of a base piezoelectric layer. A plurality of piezoelectric layers are laminated on the upside of the base piezoelectric layer and an electrode is formed on an upside of each of the laminated piezoelectric layers. The method further includes sintering the base piezoelectric layer and the laminated piezoelectric layers, and polarizing the base piezoelectric layer and the laminated piezoelectric layers, respectively. A part of the laminated piezoelectric layers located at a position corresponding to each of peripheral portions is removed so that the piezoelectric device can be completed. An underside of the base piezoelectric layer of the piezoelectric device is attached onto the plate body, where a plurality of ink chambers and the plurality of peripheral portions have been alternately arranged, and the holding member is attached onto a top portion of the laminated piezoelectric layers of the piezoelectric device.