The method of fuzzy comprehensive evaluation is widely used in fuzzy mathematics. In the evaluation of a thing will often encounter such a kind of problem, because the evaluation of the business is determined by many factors, so to evaluate each factor; On the basis of an individual evaluation of each factor, how to take all factors into account and make a comprehensive evaluation is a comprehensive evaluation problem. It has the characteristics of clear results and strong systematicness. It can better deal with vague and difficult to quantify problems, and is suitable for solving various uncertain factors.