Abstract:The stability of slope is one of the ultimate goals of slope engineering, and the stability evaluation is a multi-factor and dynamic complex nonlinear problem. Based on the uncertainty measure theory, the stability evaluation systems of the open edge before and after treatment were established. Ten indexes affecting slope stability were selected from four aspects: topographical features, hydrology and meteorology, physical and mechanical properties of rock mass and engineering factors. Also, the uncertainty measure function of each index according to the index value of an open slope before and after treatment was established. The entropy weight theory was used to determine the weight of each index, to obtain the stability evaluation results of the slope before and after treatment. The results showed that the uncertainty measure theory of entropy weight attribute was scientific and reasonable; and the evaluation result was consistent with the actual form before and after the slope treatment, and is considered to be safe according to the treatment scheme.