Fuente: WIPO "circular economy" The invention discloses a low-pressure drip irrigation system for recycling manure water in a mountainous area, relates to the technical field of low-pressure drip irrigation, and aims to solve the problems that in a traditional irrigation mode, in the process that manure water goes up a mountain, the high pressure at the foot of the mountain enables the drip irrigation amount in a low mountain forest to be too large, overflow is caused, manure water resources are wasted, and waste of the manure water resources is caused. A storage tank is detachably arranged at the top of the mountain body, a high-pressure pump is arranged at the bottom of one side of the mountain body, a plurality of irrigation grooves are formed in the surface of the mountain body in the height direction, and a high-pressure conveying pipeline is detachably connected between the high-pressure pump and the storage tank. The end, away from the high-pressure pump, of the high-pressure conveying pipeline communicates with the interior of the storage tank from the top of one side of the outer edge face of the storage tank, a liquid drainage hole is formed in the bottom of the other side of the outer edge face of the storage tank, and an electric control valve is detachably installed in the liquid drainage hole. The low-pressure irrigation device has the advantage that low-pressure irrigation is achieved on the surface of the mountain.