水凝胶是一种具有三维网络结构的新型功能高分子材料,其在药物输送与可控释放、医学诊断、生物传感器、微反应器、催化剂载体等方面有良好的应用前景。综述了水凝胶近几年最新的制备工艺方法,以期为智能水凝胶的实际应用提供参考。另外,对这智能水凝胶目前存在的问题和今后的发展方向提出了一些看法。 Hydrogel is a kind of new functional polymer material with three-dimensional network structure. It has good application prospect in drug delivery and controlled release, medical diagnosis, biosensor, microreactor and catalyst carrier. The recent preparation methods of hydrogels in recent years are reviewed in order to provide reference for the practical application of intelligent hydrogels. In addition, some suggestions are put forward on the current problems of this hydrogel and its future development.