The utility model relates to a groundwater fat gas integration irrigation system belongs to the irrigation management field. The utility model discloses a water source, liquid manure coupled system, refueling system, initiative conveyor system, irrigation system, control system, the water source includes running water water inlet pipe, check valve, liquid manure coupled system includes the water intaking valve, mix fertile jar, thoughtlessly fertile valve, store fertilely irritate, flowmeter, filter, fertilization pump, stagnant water valve, the refueling system includes air compressor, solenoid valve, initiative conveyor system is including the transportation collecting main, irrigation system is including irrigating the collecting main, irrigating the branch pipe, irrigating hollow billet, water dropper, control system includes soil moisture control circuit, atmospheric pressure test circuit. The utility model discloses according to crop growth's needs, provide an amount of water and fertilizer to ventilate at the roots of plants and carry out aerobic respiration and maintain metabolism of self and growing of whole plant in order to satisfy the root. The system can effectually practice thrift the liquid manure quantity, and the optimum management reduces the labour, the increase of production.