[目的]为研究沼液灌溉对土壤中重金属含量的影响。[方法]采用盆栽控制灌溉方法,分层研究土壤中Cu、Zn、Pb、Cd、Cr含量的变化。[结果]沼液原液和稀释30倍沼液灌溉都会增加土壤中Cu、Zn、Pb、Cd、Cr的含量,其中短期内重金属Cr存在局部超标的可能。沼液灌溉增加了Cu在土壤中向下的迁移速度,降低了Zn在土壤中向下的迁移速度。[结论]沼液灌溉会对土壤中重金属含量造成影响,长期使用会引起在土壤中的累积。 [Objective] The research aimed to study the effect of biogas slurry irrigation on heavy metal content in soil. [Method] The potted controlled irrigation method was used to study the changes of Cu, Zn, Pb, Cd and Cr contents in soil. [Result] The contents of Cu, Zn, Pb, Cd and Cr in the soil were increased by biogas slurry and biogas slurry diluted by 30 times. Biogas slurry irrigation increases the downward migration rate of Cu in the soil and reduces the downward migration rate of Zn in the soil. [Conclusion] The biogas slurry irrigation will affect the heavy metal content in the soil, and the long-term use will cause the accumulation in the soil.