对砌体结构进行了概率性的非线性地震反应分析，提出了一个基于改进的等效线性化的地震可靠性分析方法。用这个方法对实际工程进行了计算，所得结果与Monte－carlo数值模拟法计算结果相近。 A probabilistic non-linear seismic response analysis was performed on the masonry structure, and a seismic reliability analysis method based on improved equivalent linearization was proposed. The actual project was calculated by this method. The results obtained are similar to those calculated by the Monte-carlo numerical simulation method.