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对Ｔａｙｌｏｒ展开随机有限元进行了研究，通过平面八结点等参单元中引入变量随机性，导出了应力偏导数矩阵．通过算例进行了重力坝可靠度和坝基刚度对可靠度影响的分析，得出了有益的结论．
The Taylor finite element method is studied, and the stress partial derivative matrix is deduced by introducing the randomness of variables into the isoparametric elements of plane eight nodes. The influence of gravity dam reliability and dam foundation stiffness on reliability is analyzed by examples. Some useful conclusions are drawn.