叙述了利用生物质制备液体燃料的4种技术及其原理、工艺过程；着重介绍了近年来各种技术发展中出现的新趋势，如选择性快速热解、直接液化藻类植物、选择性超临界萃取、模拟生物功能处理木质纤维素；列举了包含新趋势的实验例子；最后对各种技术做了分析。

Four kinds of technology for liquid fuel from biomass, together with their principles and procedures, are narrated. The paper is mainly concerned about new tendency in all kinds of technology for liquid fuel, for example selective fast pyrolysis, liquefaction of algae, selective supercritical extraction and simulation of function of organism for processing biomass with lignin. Moreover, there are examples with new tendency in this paper. Finally, all kinds of technology are analyzed.