This study aims to explain in cognitive way how the pansori singer can perform the long narrative details without script. It is fluency of the pansori singer that he performs pansori with remembered story and memorized saseol. This article explained cognitive conditions that make the singer's fluency actualize with the concept of 'schema' and 'prototype'. The oral composition of pansori saseol can be classified as followings; First, composition by contiguity principle. It means that the details in a unit saseol contiguous to each other physically. The 'direction-schema', 'road-schema' and 'season-schema' is controlled by contiguity principle. Secondly, composition by similarity principle. The 'picture-schema', 'flower-schema' etc belong to this type. It means that the details in unit saseol have semantic similarity. Thirdly, composition by continuity principle. The details in a unit saseol continue by the order of number or letter. It seems that the pansori singer can compose and replay the pansori narrative and its details by conventional schema and verbal cliché familiar to the members of discourse community. Making use of the schema, the pansori singer can remove the difficulty of remembering and memorizing the saseol, and encourage the fluency of performance.