NOVELTY - Processing dairy farming ecological sewage involves placing layers of sand (3-5 cm), foliage (5-7 cm), sawdust (3-5 cm), wood chips (10-15 cm), and alkaline residue (3-5 cm) in denitrifying phosphorus ditch. Layer of rhizome calami, ivy, Euonymus fortunei of thickness 40-70 cm is placed over the top layer, and then layer of Ammopiptanthus nanus, and Photinia of thickness 1-1.5 m is placed over the obtained layer. Solid stool (30-37%) is separated by semi-mechanical process to remove urine. Obtained sewage is transferred to sewage collection tanks.    USE - Method for processing dairy farming ecological sewage used for growing algae for fish and cow feed (claimed).    ADVANTAGE - The method enables to process dairy farming ecological sewage in a cost effective and eco-friendly manner.    DETAILED DESCRIPTION - Processing dairy farming ecological sewage involves placing layers of sand (3-5 cm), foliage (5-7 cm), sawdust (3-5 cm), wood chips (10-15 cm), and alkaline residue (3-5 cm) in denitrifying phosphorus ditch. Layer of rhizoma calami, ivy, Euonymus fortunei of thickness 40-70 cm is placed over the top layer, and then layer of Ammopiptanthus nanus, and Photinia of thickness 1-1.5 m is placed over the obtained layer. Solid stool (30-37%) is separated by semi-mechanical process to remove urine. Obtained sewage is transferred to sewage collection tanks. Solid stool is separated by using upflow anaerobic sludge blanket digestion anaerobic fermentation system that has thermoelectric fertilizer biogas cogeneration system. Gas turbine is provided to produce electricity. Fermentation is carried out to obtain digestate containing organic fertilizer (35-45%). Remaining material of (55-65%) is added to solid-liquid separator. Obtained solids are dried, and liquids are transferred to sewage storage tanks. Sewage (20-30%) is mixed with Chlorella, Myriophyllum in pond, which is provided with aerator to control ratio of gas and water to (2-3):1. Concentration of dissolved oxygen is controlled to 2-4 mg/L. Algae is harvested once in a week, and 20% algae is added directly to pond. Grass carp, bream fish and bighead carp are added to pond. Amount of grass carp 12kg/m2 of algae pond surface. Ratio of algae and water is 1:7-11. Dried algae (30-40%) is stored for fish feed. Remaining material (40-50%) of algae is utilized for purification. Water (30-40%) is utilized for growing alfalfa, chicory, Pennisetum sudangrass, which is dried and utilized for cow feed. Sewage processing is carried out in denitrifying phosphorus pond, and hydraulic retention time is 3-5 days. Denitrifying phosphorus ditch water is transferred to conditioning tank through pipeline, which contains quartz sand for filtration. Chlorine dioxide generator is utilized for disinfecting water.