综述了近年来国内外纳米或多孔氧化铬的制备方法，即气相法、固相法和液相法（主要包括热分解法、沉淀法、溶胶-凝胶法、水热合成法、模板法、溶液燃烧法、超声化学法等）；讨论了各制备方法对粒子表面形貌、粒径尺寸或孔结构、晶相结构等的影响；展望了今后对这类纳米或多孔材料研究与应用的发展方向。在诸多制备方法中，模板法或其与其他方法的联用法是制备规整形貌、有序孔结构、均匀粒径分布、高热稳定性氧化铬的较为适宜的方法。模板法有望发展成为高效实用的催化剂制备技术。

The preparation methods，such as gasphase method，solidphase method and liquidphase method（mainly includ ing thermal decomposition method，precipitation method，sol-gel method，hydrothermal method，templating method，solution combustion method and ultrasonic chemical method），of nanosized or porous chromium oxides reported in recent years at home and abroad were summarized.The influences of these methods on the surface morphology，particle size or pore structrue， crystal phase and so on were discussed.Then，the development trend in the investigations and applications of the nanosized or porous materials in future was envisioned.Among the above preparation methods，the templating method or its combination with other preparation methods might be a more appropriate pathway for the generation of chromium oxides with regular surface morphology，ordered pore structure，uniform particle size distribution and good thermal stability.It is expected that the templating method will be developed into efficient and practicable preparation method for catalyst.