The utility model provides a pressure compensated dripper with adjustable, including delivery port, water inlet, and the intercommunication the water inlet with the runner of delivery port still includes the regulating part, the runner includes barrel and separation blade, the separation blade sets up inside the barrel, make the inside flow path that forms complications of barrel, the regulating part sets up the junction of runner and delivery port for adjust the cross sectional area of junction. The utility model discloses in, runner inside sets up a plurality of separation blades, during the water pressure increase, through the speed of separation blade reduction rivers, and then reduces water pressure, if water pressure is still too high, through the area of regulating part adjustment runner with the delivery port junction, reduce passing through of rivers, further reduce water pressure.