To determine the sensory descriptors of set yogurt,sensory evaluation group is composed by eight selected assessors of yogurt. Thirty two sensory descriptors of set yoghurt were collected and collated with sensory training method. The number of descriptors was reduced for the first time according to the calculated geometric means in strength scale. Dualistic fuzzy comparison was applied to conduct second cut to determine the sensory evaluation descriptors of set yoghurt. Eleven sensory evaluation descriptors for the set yoghurt were built to accurately and comprehensively describe the sensory characteristics of set yogurt.