The problem of heavy metal pollution in China is significant, refractory materials in the sewage can not be effectively removed by the traditional ways. The domestic and foreign research results show that the constructed wetland plays an irreplaceable role in heavy metal ions removal, and has many advantages of strong purification ability, well resistance and low operating cost, so it has great development potential in the treatment of heavy metal pollution. In this paper, the mechanism of heavy metal removal by constructed wetland was mainly introduced; the present research situation of domestic and foreign related artificial wetland for removing heavy metals was described: The research on contribution of substrate and plant to heavy metals removal in wetland was discussed as well as the correlation of various factors; At last, the development prospect of treating heavy metal containing wastewater by artificial wetland was introduced.% 我国重金属离子污染问题突出，其为污水中难降解物质，采用传统方式无法有效去除。国内外研究成果表明人工湿地在对重金属离子污染去除技术中有着不可替代的作用，具有净化能力强、抗逆性、运行费用低等优势，在处理重金属污染中具有很大的发展潜力。主要介绍了人工湿地去除重金属污染的机理；阐述了国内外有关人工湿地去除重金属的研究现状，主要介绍湿地中基质和植物对重金属去除的贡献研究以及各因素的相关性研究；最后简单介绍了人工湿地处理含重金属废水的发展前景。
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