针对目前在建和拟建的大型面板堆石坝地质条件差、地震烈度高、坝高不断增加的情况，解决一些比较突出的关键技术问题的重要性和迫切性日益突出。通过极限平衡理论和可靠度理论2种方法对属200m级高堆石坝范畴的卡基娃面板堆石坝进行坝坡稳定计算，研究了其非线性强度指标坝坡稳定及可靠度，分析了相关关键技术指标、安全系数标准对坝坡稳定安全的影响及可靠性水平等关键问题。与极限平衡理论相比，采用基于可靠度理论的方法设计坝坡，可以量化安全裕度，有利于高堆石坝坝坡的优化设计，这无疑对于减少工程投资和环境保护都具有极大的现实意义。

 Large-scale concrete-face rockfill dams are facing with technological challenges caused by geological condition, high seismic intensity, and large dam height. We adopted the limit equilibrium theory and reliability theory to calculate the dam slope stability of Kajiwa concrete-face high rockfill dam. We analyzed the slope stability and reliability considering nonlinear strength parameters, and investigated the influence of technical indexes and safety factors on the slope stability. Compared with the limit equilibrium method, the reliability-theory-based method employed to design dam slope could quantify the safety margin, and thereby is contributive for the optimal design of high rockfill dam slope. It’s of practical significance for cost reduction and environmental protection.