关键词: 不可再生润滑油, 生物降解, 环境污染

Abstract: The current situations about lubricant biodegradation of mineral lubricant，synthetic lubricant and vegetable lubricant were summarized in this paper，with a highlight of the diversity of lubricant. The main aspect of the lubricant study is focused on the development and evaluation of degradable lubricant. However，environmental friendly treatment of nonrenewable lubricant had less attention in current research. The current work of nonrenewable lubricant is mainly focused on the biodegradability research. However，improving strains and constructing multiple colonies aiming at promoting the ability and efficiency could be more effective ways of lubricant degradation. Developing an efficient，economical and applicative biodegradation technique would be the goal of future research. Synthetic lubricant and vegetable lubricant with high potential of biodegradability would be valuable in research and application.

Key words: nonrenewable lubricant, biodegradation, environment pollution