Abstract: To assign the weights of attributes and experts for multi-attribute group decision-making,seeing that the weight information of attributes and experts completely consists in the judgment matrixes given by the expert,so the feature information of the judgment matrixes should be explored enough to assign weights.Based on the above idea,a multi-attribute group decision-making method rooted in the judgment matrixes is developed.This objective method for assigning weights not only has a clear structure and simple algorithm,but also avoids the inconsistent phenomena that the subjective judgments for experts are different from the experts' actual decision-making performance.An illustrative example proves that the method is reasonable and valid.