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Evaluation of pavement performance is one of the most important issues in a pavement-management system. By employing the concept of entropy, the matter-element model for evaluating pavement is established, and the weights of the evaluation indices are obtained from surveying data. By calculating the degree of dependence of the matter-element model, the pavement performance evaluation can be obtained by this method. The results show that the matter-element model based on entropy right has good performance for evaluating the pavement condition in permafrost region.