Multi-needle nozzle, multi-needle nozzle array and ink jet device

The invention discloses a multi-needle nozzle, a multi-needle nozzle array and an ink jet device, and relates to the technical field of ink jet printing and dyeing. The multi-needle nozzle comprises a metal sheet, the plurality of spray needles are positioned on the edge of the metal sheet, are parallel to the metal sheet and are used for circulating liquid to be subjected to jet printing; the piezoelectric resonator is positioned on the side surface of the metal sheet and is used for driving the metal sheet to vibrate under the control of a driving electric signal, so that the spray needle vibrates, and the liquid to be printed in the spray needle is vibrated out; the piezoelectric resonator comprises a lower electrode layer, a piezoelectric ceramic layer and an upper electrode layer which are sequentially stacked from the side close to the metal sheet to the side far away from the metal sheet; the lower electrode layer and the upper electrode layer are coating materials arranged on the two sides of the piez