Aiming at the characteristics of small scale, large quantity and high dispersion of domestic sewage in rural areas, scarce operation and maintenance personnel and high energy consumption, a combination process of efficient improved, the sewage treatment project in Shifang village of Caocun Township of Xingyang for example, the combined process on the effect of scattered farmers domestic sewage was studied.The results show that The removal rates of COD, BOD5, SS, NH3-N and TP treated by the combined process are 79.57%, 85.33%, 81.12%, 75.33% and 70.67% respectively, no energy consumption, low maintenance cost, simple operation, stable water-quality, and it can reach the Grade B standard of the《Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant》 (GB18918-2002).