给出了以二元关系为基础的模糊效用，并将模糊概率和模糊数引入效用评估问题中，使得在通常情况下难以作出的价值比较与判断，如被评价属性不具有公度性时的效用，评估更加有效．本文对因为语义模糊带来的判断不准确性问题意义十分重大 The fuzzy utility based on the binary relation is given and the fuzzy probability and fuzzy number are introduced into the utility evaluation so that it is difficult to make the comparison and judgment of the value under normal circumstances. Utility, assessment more effective. This article is of great importance to the problem of inaccurate judgment caused by semantic ambiguity