本文概要地介绍澳大利亚热带牧草研究现状以及近年来的研究进展。简述了几个新品种的特性及其在改良天然草地上的作用;并讨论了含羞草素含量低的银合欢的育种途径。最后对改良天然禾本科草地的方法和效果进行概要的论述。 This article gives an overview of the status quo of Australian tropical pasture research and recent advances in research. The characteristics of several new varieties and their roles in improving the natural grassland were briefly described. The breeding ways of the silver acacia with low content of mimoside were discussed. Finally, the methods and effects of improving the natural gramineous grassland are briefly discussed.