Abstract: Vanadium dioxide（VO2）has polymorphs of B with a metastable monoclinic rutile structure，M with a monoclinic rutile structure and R with a tetragonal rutile structure. VO2 is a potential functional material in various fields for its specific optical and electrical properties. This paper reviews the preparation of nano VO2（B）powders including methods，reagents and temperature. The properties and prospective applications of VO2（B）are described. The key technology and progress in synthesizing VO2（M）powders are discussed. The phase transition between VO2（M）and VO2（R）are analyzed with the types，induction factors，temperature fluctuating source and mechanism study. Based on the recent research progress since 2007，it is proposed that the research of phase transition mechanism is necessary for controll the phase transition properties of VO2 powders，which would be the trend of future research in VO2 materials.

摘要： VO2具有B、M和R等晶相，VO2（B）是亚稳态的单斜金红石结构，VO2（M）是单斜金红石结构，VO2（R）是四方金红石结构。VO2具有特殊的光学和电学性质，是一种具有广泛应用前景的功能材料。本文综述了VO2（B）纳米粉的合成方法、合成温度及所用试剂，分析了VO2（B）的性质与用途，讨论了VO2（M）粉体合成中的关键问题与研究现状，评述了M与R相之间转变的类型和诱导因素、相变温度影响因素、相变机理研究手段，总结了2007年以来VO2粉体研究的新进展，指出深入研究相变机理是控制VO2相变性质的前提，是研究发展的趋势。