Abstract: The evaluation indicators of biodiesel cold flow property，primary influence factors and approaches to improving cold flow are reviewed. The cold flow property of biodiesel depends on the content and distribution of fatty acid，ester base structure and contaminants composition. Several methods to improve cold flow property are discussed and the development of additives to improve cold flow property is recommended.

摘要： 综述了生物柴油低温流动性评价指标、主要影响因素及改进方法等相关研究进展。介绍了生物柴油中的脂肪酸组成和分布、酯基结构及杂质组成与生物柴油低温流动性能的关系。论述了改善生物柴油低温流动性的几种主要方法：加入添加剂法、改变生物柴油结构、冬化处理等。其中加入添加剂法成本低，操作方便，将成为改进生物柴油低温流动性能的研究方向。