Disclosed is a recycling system for treating sewage of an ecological farm, including an external water source, a living area producing domestic sewage, a culture area producing breeding sewage and a farmland area producing agricultural drainage. The external water source feeds water to an ecological river, a water-saving irrigation system of the farmland area, the living area and the culture area through a water-diversion system. A first channel configured to discharge the domestic sewage from the living area is communicated with the water-saving irrigation system through a domestic sewage treatment system. A second channel configured to discharge the breeding sewage from the culture area is communicated with the water-saving irrigation system through a breeding sewage treatment system.
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