In response to the characteristics of high concentration,complex composition,and high treatment difficulty of reverse osmosis concentrate from landfill leachate,several common treatment technologies are summarized,including recirculation,evaporation concentration,advanced oxidation,re-utilization technologies and so on.Their advantages and disadvantages are compared and analyzed.Combined with current new environmental protection requirements,suggestions and prospects for the research direction and application prospects of reverse osmosis concentrate treatment technology for landfill leachate are provided.