The rapid development of small towns accelerates environmental pollution and water shortage in our country. Appropriate treatment and reuse of wastewater become a concern in rural modernization. In this paper, litter-scale experiment was carried out in East Area wastewater treatment plant by using rapid infiltration land treatment system and integrated vertical-flow infiltration system to research the effect of land infiltration on sanitary wastewater of small towns, which supported by the Natural Key Resea...