Fuzzy system is a knowledge-based or rule-based systems, its core is a so-called IF-THEN rules consisting of knowledge base. Fuzzy inference is the process that for a given system input, integrated use of knowledge in the fuzzy inference rules, to obtain the system output. The basic idea of fuzzy TS model is that the normal fuzzy inference rules and reasoning are converted into a mathematical form of expression. This article intends to performance appraisal and the superiority of the fuzzy inference for effective combination of research and discussion of basing on TS fuzzy reasoning in the performance appraisal. Its convergence and superiority is verified