A drip irrigation dripper (1) for controlling an ejection amount of the irrigation liquid, which has flowed from an inlet part (221), from an ejection port (321) to eject the irrigation liquid, the dripper comprising (1) drip irrigation: a plate-like body (11) having a first external surface (212) on the side of the inlet portion (221) of the drip irrigation dripper (1) and a second external surface (312) on the side of the ejection hole (321) on a side opposite the first outer surface (212)； a first projecting part (22) projecting from the first external surface (212) towards a side opposite the second external surface (312) and having the inlet part (221) in a tip portion of the first projecting part ( 22)； a first guide channel (23) formed from the inlet part (221) to the interior of the plate-like body (11) and which guides the irrigation liquid that has flowed from the inlet part (221) to the interior of the plate type body (11)； a pressure reducing channel (8) formed to be connected to a terminal of the first guide channel (23) to allow the irrigation liquid, which has been guided by the first guide channel (23), to flow into the ejection port (321) while reducing the pressure of the irrigation liquid； and a second guide channel (33) formed from a position connected with a terminal of the pressure reducing channel (8) inside the plate-like body (11) to the ejection hole (321) arranged on the side of the second external surface (312) of the drip irrigation dripper (1) and to guide the irrigation liquid whose pressure has been reduced by the pressure reducing channel (8) to the ejection hole (321)； and the drip irrigation dropper (1) is characterized in that the inlet part (221) has hydrophobicity and prevents the irrigation liquid having a liquid pressure less than a predetermined liquid pressure from flowing into the part (221) ) input.Un gotero (1) de irrigación por goteo para controlar una cantidad de eyección del líquido de irrigación, que ha fluido desde u
