椭圆偏振光谱技术是一种高度灵敏、非破坏性的原位实时表征技术，可获取腐蚀过程“电极材料-介质”界面的动态变化信息，因此在腐蚀研究中得到了广泛应用. 本文结合解析椭圆偏振光谱数据所采用的光学模型的发展，介绍了近年来椭圆偏振光谱技术在腐蚀研究中的典型应用，并分析了该技术的发展趋势. ; As a highly-sensitive and non-destructive in situ technique, spectroscopic ellipsometry has been widely applied in corrosion investigation to acquire the dynamic information of the “electrode-medium” interface during corrosion. This paper lays out some representative demonstrations in several established optical models used to interpret data obtained with spectroscopic ellipsometry in corrosion investigation. In addition, the latest trends in development of this technique are analyzed. ; 国家自然科学基金项目（No. 21273293，No. 20803097）和重庆市科技攻关计划项目（CSTC， 2011AB4056）资助 ; 作者联系地址：重庆大学化学化工学院，重庆 400044 ; Author's Address: School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044 ; 通讯作者E-mail：JLLei@cqu.edu.cn