Abstract: The weight is the key index to the Fuzzy Comprehensive Evaluation, and it can have direct effects on the accuracy of the evaluation. In this article the theory of multiple objective decisions making with entropy weight method is applied to the Fuzzy Comprehensive Evaluation, and the entropy weight values can be provided by membership matrix without artificial subjective factors, so the results is scientifical and more accurate. A certain landslide in Baota district of Yan'an city in Shaanxi province is analysed with the fuzzy comprehensive evaluation method. The results indicate that the fuzzy comprehensive evaluation for the stability of landslide with entropy-weight method has more accurate results and more reliability, and the method is feasible, which has some referenced values for the evaluation on the engineering geology stability.