缓蚀剂技术是一种简单有效抑制金属在腐蚀介质中遭到破坏的腐蚀防护手段，在钢铁、铜等传统金属上已有大量研究及应用。由于镁具有接受电子和给予电子能力都比较低的原子结构特点和高活泼的化学性质，对传统金属材料有效的缓蚀剂对镁合金作用并不理想，所以对镁合金的缓蚀剂研究较少、起步较晚。近年来，经过国内外研究机构的不懈努力，对镁合金缓蚀剂的开发和缓蚀机理的研究取得了一定突破，初步建立了镁合金缓蚀剂的评价体系。针对镁合金缓蚀剂的不同应用介质，结合镁合金缓蚀剂的化合物性质，阐述了镁合金缓蚀剂的构效关系、影响缓蚀效率的主要因素、复配缓蚀剂配方优化等最新研究动态，并介绍了其缓蚀机理或协同缓蚀机理。最后，结合镁合金缓蚀剂的研究现状以及新的研究方法及其检测技术的发展，对镁合金缓蚀剂未来的研究方向、发展趋势和应用领域的拓展提出了展望。

Corrosion inhibitor technology is a simple and effective corrosion protection method to prevent metal corrosion in a corrosive medium, hence it has been extensively studied and applied to traditional metals such as steel and copper. As magnesium has atomic structure characteristic including low electron receptivity and electron giving capacity as well as highly active chemical properties, effective corrosion inhibitors for traditional metal materials are not ideal for magnesium alloy, so studies on corrosion inhibitors of magnesium alloy are less and started late. In recent years, through unremitting efforts made by research institutes at home and abroad, certain breakthrough has been made in development of magnesium alloy corrosion inhibitors and study on corrosion inhibition mechanism, an evaluation system has been initially established for magnesium alloy corrosion inhibitors. For different application mediums of magnesium alloy corrosion inhibitors, based upon compound properties of magnesium alloy corrosion inhibitors, recent research trends including development of magnesium alloy corrosion inhibitors structure-activity relationship, main factors influencing corrosion inhibition efficiency and optimization of compound corrosion inhibitors were presented, and corresponding corrosion mechanism or synergistic corrosion mechanism was introduced. Finally, future research direction, development trend and application field expansion of magnesium alloy corrosion inhibitors were prospected by referring to the research status of magnesium alloy corrosion inhibitors as well asnew research methods and development of correspondingdetection technology.