Abstract: By studying the problem of Multifactorial Evaluation in fuzzy environments, three Fuzzy Multifactorial Evaluation Models and methods to implement these models in all kinds of decision-making requirements arc presented. It attempts to solve the practical problems of Multifactorial Evaluation, under the situation that either weights or rating is fuzzy, or both of them are fuzzy in various decision-making circumstance.

Key words: multifactorial evaluation, 2-type fuzzy sets, linguistictcn