Abstract: Measures were given for consolidation of landslide of the dams and the method of stability analysis of stress diffused by a compound dam at plain,which stored flash for a power plant.The step dams with two grades have a flash dam and a soil dam,and landslide occurred two times.There are many times of geological prospecting for analysis and stabilization of dam landslide.According to the information of soil exploration,design and correction,consolidation measures had made landslide correction successful in lower cost and the dams suffered from stored floodwater around.