NOVELTY - A south scale cultivating pig wastewater depth treatment method comprises (A) pre-processing pig excrement and separating residue liquid; (B) performing anaerobic fermentation; (C) biogas processing; (D) performing water quality purification and introducing into simulated ecological oxidizing pond; and (E) performing depth purification. The step (A) comprises pre-processing pig excrement, washing wastewater by collecting pipe net collective for regulating pool I, forming material liquid, and providing solid-liquid separating machine with edge pool.    USE - South scale cultivating pig wastewater depth treatment method.    ADVANTAGE - The method exhibits high wastewater processing efficiency, has low running cost, and has simple maintenance.    DETAILED DESCRIPTION - South scale cultivating pig wastewater depth treatment method comprises (A) pre-processing pig excrement and separating residue liquid; (B) performing anaerobic fermentation; (C) biogas processing; (D) performing water quality purification and introducing into simulated ecological oxidizing pond; and (E) performing depth purification. The step (A) comprises pre-processing pig excrement, washing wastewater by collecting pipe net collective for regulating pool I, forming material liquid, providing solid-liquid separating machine with edge pool, using separating machine for processing material liquid, dividing solid waste material, and separating residue liquid. The step (B) comprises processing biogas slurry sediment, introducing separating liquid into methane gas pool, performing anaerobic fermentation for more than 7 days, forming gas and biogas, introducing biogas slurry into regulation pool II, standing for 1-3 days, forming slag and sludge and floating slag of floating mud, and introducing biogas slurry into biological filler oxidation pool. The step (C) comprises biogas processing, introducing biogas into biological filler oxidation pool, using active sludge method for 2-4 days of treatment, and performing bottom aeration. The step (E) comprises pumping out water from simulated ecological pond to vertical undercurrent artificial wetland, and discharging into wetland water outlet.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram illustrating a south scale cultivating pig wastewater depth treatment method.