对（Zde2）0.86MgO0.14外加2～12mol％CeO2陶瓷材料的电导率进行了研究，对此类材料的电导率、活化能与强度、结构的关系进行了分析．实验发现，当外加CeO2含量在6～8mol％时，电导率、活化能发生反常变化，此变化可能与点缺陷行为有关；随热处理时间的增加，电导率下降，电导活化能出现极小值，而弯曲强度出现极大值，出现极值的区域具有较好的对应关系． The conductivity of (Zde2) 0.86MgO0.14 plus 2 ~ 12mol% CeO2 ceramic was investigated, and the relationship between the conductivity, activation energy, strength and structure of these materials was analyzed. The experimental results show that when the content of CeO2 is 6 ~ 8mol%, the conductivity and activation energy change abnormally, which may be related to the point defect behavior. With the increase of heat treatment time, the conductivity decreases and the conductance activation energy shows a minimum. The flexural strength of the maximum, the extreme value of the region has a good correspondence.