Abstract: Advantages of second-generation biodiesel are reviewed on the basis of literatures. The preparation principle for second-generation biodiesel is described，and three main production processes are summarized as the direct hydrodeoxygenation of oils and fats，the hydrodeoxygenation followed by hydroisomerization and the refining blended with diesel fuel. Furthermore，catalysts for hydrodeoxygenation and hydroisomerization involved in the preparation process are also summarized. Problems in the development of second-generation biodiesel are discussed，and corresponding solutions are proposed.

摘要： 归纳了第二代生物柴油的优势，叙述了第二代生物柴油的制备原理，概括了3种主要的生产工艺，即油脂直接加氢脱氧工艺、加氢脱氧再异构工艺和柴油掺炼工艺。对制备过程中涉及的加氢脱氧催化剂和加氢异构催化剂进行了总结，指出了第二代生物柴油发展面临的问题及解决方向。