Abstract：Widely distributed shattered slopes are potentially high-risk carriers of geological disasters in earthquake areas especially in the rainy season. A slope in Sanxicun was studied as an example in this paper. Based on the detailed site investigations，the effect of rainfall was investigated with the Seep model. The strength parameters under different conditions were acquired in the laboratory tests. The deformation and destructive mechanism of the shattered slope triggered by rainfall were summarized. The slope stability in the light of the actual situation and the corresponding mechanical model was calculated. The sliding process of the shattered bedding slope was divided into five stages such as the original status，earthquake damage，creep weakening，rainfall triggering and sliding. Rainfall was found to be the main reason to form deep cracks，expanding joints and massive rock strips. At the same time，the cracks promote the rainfall infiltration，resulting in water softening，creep deformation and finally sliding. The main factor to affect the stability of the slope is the interaction of rainfall and creep after the earthquake.
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