中文摘要：

生物脱硫是一种新兴的脱硫方法，在一定条件下通过微生物的代谢作用将硫化氢转化为单质硫，既解决了传统脱硫方法的污染问题，又可以回收硫资源，实现了环保和低成本脱硫，发展前景十分广阔。文章介绍了脱硫微生物以及生物脱硫的机理，综述了近年来国内外沼气生物脱硫技术的研究进展，并对今后的研究方向做了一定的展望。

英文摘要：

Biogas is a kind of renewable clear energy, but the existence of hydrogen sulfide inbiogas greatly restrict the utilization of biogas. Thus it is very urgent to study biogas desulfurizationtechnology. Traditional physical and chemical biogas desulfurization technology have been widelyused. However, they have some disadvantages, such as high cost, requiring many chemicals andhigh energy, easily generating secondary pollution, etc. Biological desulfurization is a new methodwhich can convert hydrogen sulfide into elemental sulfur by microbial metabolism. It not onlysolves the problem of pollution from traditional desulfurization technology but also recycles the sul-fur resource. It would be very promising for its low-cost and environmental protection. The paperintroduced bio-desulfurization microorganisms, biological desulfurization mechanism, and summa-rized the research progress on biogas biodesulfurization of our country in recent years. Further-more, an outlook on the research direction in future had been put forward.