Abstract: The key of the evaluation method, as a method of slope stability evaluation, lies in the accuracy of the established judgment model, and the determination of the membership and the weights of the evaluation factors are important to the judgment model. In practice, the expert scoring method is widely used in weights determination, though the method is subjective. Judgment Matrix Analytical Method is used to determine the weights of the evaluation factors and Secondary Fuzzy Evaluation is used in the calculation and analysis of a real project. This method shows to be convenient and closing to the reality.