Through a large scale of jiangxi pig farm processing waste water and breeding and reservoir after the resource utilization of farmland irrigation mode analysis, the results show that: after COD waste water treatment, ammonia nitrogen and phosphorus concentration were 83.1 mg/L, 1.17 mg/L, 0.013 mg/L, achieve the livestock and poultry breeding standards for discharge of water pollutants "(GB18596-2001) emission standard. With certain concentration of organic wastewater into a nearby reservoir fish for fish, save the fish, and through reservoir water feeding on organic further diluted. Reservoir water again, make breeding wastewater irrigation get thoroughly degraded, which decrease the cost, eliminate pig emission pollution to the environment, and increase crop yield. This model is a kind of waste water treatment and raising pigs can recycle of ecological mode. Suggestions on pigs wastewater process, and perfect the drinking water away from underground paddy field ditch irrigation system, avoid wastewater into groundwater, and strictly control the concentration of the pollutants emitted to the reservoir, lower than the concentration of tolerance, basic fish to fish for water quality standards, raising the recycle of waste water treatment and provide the scientific basis.