This study was to explore how effective wordless picture book reading activities were in developing young children's fictional narratives. Subjects for this study were 40 five-year-old children attending two classes of S kindergarten located in Seoul. They comprised the experimental group of 20 children and the control group of 20 children. As the treatment for the experimental group, the researcher applied the wordless picture book reading activities to small groups of five children using active interactions. Twelve sessions had been carried out once or twice a week for nine weeks. Results of this study, it was found that the wordless picture book reading activities positively affected young children's structural development levels of fictional narratives, the emergence of structural components, the use of logically cohesive devices, the number of clauses. This suggests that the wordless picture book reading activities using teacher-child interactions would be one of effective ways of developing young children's fictional narratives.