Launched in July 14th, 2020, The Donghaifeng Agricultural Circular Park is a great example of circular agriculture, that successfully achieve the goal of a high-value cycle. Facing the problems such as increased greenhouse gases and water shortages, and with the government policy of actively developing green energy, biogas utilization has gained the attention of the public. Hence, in addition to solving the existing environmental pollution problems, the Donghaifeng green pig farm also provides a quick alternative to the energy shortage and can implement the concept of the agricultural circular economy. Donghaifeng livestock farm adopts vertical anaerobic (digestion) equipment, with pig manure as the main source, to add agricultural waste or distiller’s grains as a source of co-digestion. The system converts these wastes into biogas energy and organic fertilizer to achieve energy and resource recycling. The farm also actively train professional pig farmers, innovate the “pig house sharing” business model, encouraging young farmers to return to their hometowns.