Unpower treatment technology dealing with rural domestic sewage in a northern town was researched in the paper.The technique process was new septic tank-Wetland-oxidation pond.The operation results showed that the average concentrations of pollutants COD in water was 35~55 mg / L,BOD5 was 10~20 mg / L,SS was 5~18 mg / L,ammonia nitrogen was 3~5 mg / L,All reached vegetable a standard in the GB 5084-2005 irrigation water quality.Treated effluent could be used for irrigation of near farmland witch not only co...