In recent years,the discharge and treatment of rural wastewater have increasingly become a crucial factor affecting the environmental quality of rural habitats.Grounded in the practical context of rural areas in Liaoning Province,the study conducts a statistical analysis of the types and discharge characteristics of grey water in rural households.Through a combined approach of on-site verification and experimental simulation,the study validates the grey water consumption process,monitors and evaluates the consumption effectiveness of grey water in courtyards,to explore the suitability of wastewater treatment technologies applicable for the decentralized treatment of domestic wastewater in rural regions.