Abstract:As more and more attention has been paid to the remediation of heavy-metal-contaminated soil in mines, researchers have achieved considerable progress in various remediation technologies, and new remediation technologies play an increasingly important role in the remediation of heavy-metal-contaminated soil in mines. This paper has made a detailed review of theoretical, experimental, and practical progress of remediation technologies for heavy metal contaminated soil, including physical and chemical remediation, phytoremediation, microorganism-based remediation, and animal-based remediation. Then, it is summarized and proposed that the remediation technology of heavy metal contaminated soil in mines will focus on three directions: low-cost-oriented conventional technology optimization, including the effective use of conventional cheap materials, and recovery of the targeted heavy metals (hyperaccumulator and chemical recovery); technology-oriented efficiency improvement, including the research and development of new and efficient remediation materials such as nanomaterials and biofilms, genetic engineering and other top technologies, greatly improve remediation efficiency and reduce overall costs through the fine research of micro-mechanisms of each remediation technologies; combined remediation technologies, such as microbial—plant, chemical—plant, physical—chemical and other combined remediation technologies, achieve better remediation results by integrating the advantages of each remediation technologies；strengthen the construction of databases and intelligent decision-making systems for different restoration targets to promote the commercialization of research findings.