针对土壤重金属污染问题，介绍了生物炭修复土壤重金属污染的研究进展。分析了生物炭修复土壤重金属污染的影响因素、机理以及潜在危害。研究表明，生物炭、土壤和重金属3者均会对生物炭修复土壤重金属污染产生影响；生物炭可以直接吸附固定重金属，而且还能够改良土壤的理化性质，间接强化土壤对重金属的吸附固定；生物炭携带的有害物质、非特异性的吸附特性以及对土壤生态系统的影响都具备潜在的风险。展望了生物炭修复土壤重金属污染的研究方向。

In view of heavy metals pollution in soil, the research progress on biochar remediation of heavy metal polluted soil is introduced.The influencing factors, mechanism and potential hazards of biochar remediation of heavy metal polluted soil are analyzed.It is pointed out that biochar, soil and heavy metals all affect the remediation of heavy metal polluted soil by biochar.Biochar can directly adsorb and fix heavy metals, improve the physical and chemical properties of soil, and indirectly strengthen the adsorption and fixation of heavy metals by soil.The harmful substances carried by biochar, the non-specific adsorption characteristics and its impact on the soil ecosystem all have potential risks.The research direction in the future for biochar remediation of heavy metal polluted soil is prospected.