This paper reviewed the Bayesian robustness of classes of ε - contaminated priors. The criteria for measuring its robustness are kullback-leibler divergence of the posterior distribution for the classes of - contaminated priors and it's curvature. 考查了ε-代换类先验的贝叶斯稳健性,衡量其稳健与否的标准是先验为ε-代换类的后验分布的kullbackleibler散度和它的曲率。