Nitrobenzene has high toxicity, good stability and great difficulty in degrading in the water, which is easy to cause harm to human health and natural environment. Researchers at home and abroad have been attracted by how to deal with the nitrobenzene in wastewater. This paper discusses the main methods for the degradation of nitrobenzene wastewater currently used in physical, chemical and biological methods, and made a prospect of the research. Finally, it is pointed out that the integrated of various methods for nitrobenzene degradation is the focus of future research.