纳米氢氧化钙是将纳米技术应用于传统材料石灰中，得到纳米尺度的氢氧化钙粒子，改善石灰在水中溶解度低、粒径 大的问题。纳米氢氧化钙源于传统材料却优于传统材料，具有良好的渗透性和加固效果，是文物保护行业最具应用前景的 保护材料之一。首先综述了目前国内外在合成纳米氢氧化钙粒子方面的进展，然后对纳米氢氧化钙的碳酸化过程进行了探 讨，最后对纳米氢氧化钙在壁画修复、纸张除酸和土遗址加固方面的成功应用进行了介绍。

 Taking the advantage of nanotechnology, nanolime becomes one of the most popular protection materials in cultural heritage conservation, which solved the problems of low solubility and large particle size of traditional lime, and resulted in a good penetration property and a consolidation effect. The progress of synthesis of calcium hydroxide nanoparticles is introduced. Then the carbonation process of calcium hydroxide nanoparticles is discussed. Finally, the successful applications of calcium hydroxide nanoparticles in wall painting restroation, paper deacidification and consolidation of historical earth sites are also presented in this review.