Abstract: The recycling of used lubricating oil can not only reduce the pollution of the environment but also help to ease the shortage of the petroleum resources. The used lubricating oil management policy and the current situation of recycling technology were analysis. The process of used lubricating oil reclamation, reprocessing and refining were summarized, and the typical technologies such as precipitation, distillation, solvent refining and hydrofining, etc. introduced. The current applications of the technologies in treatment and recycling enterprises were surveyed, according to the intermediate links and refining process. China has established a relatively complete management system and related standards and regulations for used lubricating oil, but there are still some problems such as inadequate supervision of nonindustrial source lubricants, and some standards and regulations having been established for a long time. The survey shows that the enterprises using atmospheric and vacuum distillation (rectification) in intermediate links account for 47% in China, and more enterprises have applied more advanced molecular distillation and thin film evaporation technologies. For the refining stage, the enterprises using solvent extraction have the greatest proportion(26%). The hydrofining technology is more advanced, but the equipment investment is relatively high, and few enterprises use this technology.