To the problem that blended evaluation information exists in a same question, a processing method is proposed. Firstly, the blended information is transformed into uniform form in the same scope. Based on this, random numbers obeying certain distribution are generated, and their membership to initial information is calculated. Then, the stochastic simulation method is used to solve this evaluation question, and the possibility ranking conclusion among evaluation objects is obtained. This method can make the evaluation not be limited by single or finite data forms and can further expand the practical application range of comprehensive evaluation.