150 tons of sewage of which the COD was usually above 15 000mg·L^-1 was discharged from Lean Swine Breeding Center of Guangdong Academy of Agricultural Sciences for one day. Aerobic activated sludge-stabilization pond method was used to treat the sewage from the piggery. The raw sewage flowed through the coarse sieve screen, fine sieve screen, hydrolytic acidulation tank, primary settling tank, aeration tank, final settling tank and stabilization pond. The sludge was transported to the dewatering tank for desiccation. The total area of aerobic activated sludge treatment is about 150m×50m, and the stabilization pond sized 6 000 m². The treated sewage from stabilization pond achieves the Second Class Drainage Standard according to "The National Standard of Wastewater Overall Drainage (GB8978-88)" and can be used to irrigate for rice and other vegetable field directly.