Reclaimed water irrigation is one of the effective measures to deal with the lack of irrigation water resources. The research progress on the impact of reclaimed water irrigation on soil quality was summarized by domestic and foreign scholars. The results showed that the soil irrigated with reclaimed water increased the amount of soil microbes,and had salinization harmfulness; the heavy metal concentration in the soil irrigated with short-term reclaimed water had little negative effect on the soil. But ther...