Abstract: The project was based on 1 000 basic sow ecological breeding farms construction in Chenzhuang village, Donghan town, Fuqing city, Fujian province. There are three breeds of pigs, namely Duroc, Yorkshire and Landrace, and the breeding methods are pureectopic. Ectopic fermentation system was used for dirt treatment, biogas digester and A/O system was used for sewage treatment, and harmless composting technology was used for treatment of dead pigs. In order to achieve a virtuous circle of substances in the farm, this project added green agricultural product base, by planting rice, pennisetum, vegetables, houttuynia cordata, and citrus trees, the organic fertilizer produced by heterotopic fermentation and harmless composting can be eliminated, so as to recycle resources and zero discharge emissions. The construction of the project will promote the development of local green economy and it is expected to provide 20 000 high-quality purebred pigs each year for the whole country from small to large-scale commercial pig farms and F1 gilt expansion farms.

Key words: biosafety, ectopic fermentation, biogas digester and A/O system, greenness and health, ecological cycle