Background and Purpose: Throughout history, storytelling has always been an interest of people and in the case of children; it is an educational process. For this reason, storytelling is one of the most important means of modifying the behavior of children. Therefore, the present study was conducted with the aim of determining the effect of Quran folktale on adjustment in pre-school student.

Method: The present study was a semi-experimental design. The statistical population of the study consisted of all preschool students in Khoy city in the academic year of 2014 -2015.The sample of the study consisted of 40 children aged 5-6 years old (20 experimental and 20 control group) were selected by available sampling from two classes of a school and randomly assigned to experimental and control groups. The experimental group was trained Quran folktale in 8 sessions. To collect data, adjustment questionnaire (Sinha & Singh, 1993) was used which was carried out in two stages of pre-test and post-test. Data were analyzed using covariance analysis.

Results: The results of hypotheses tests showed that there is a significant difference between the mean scores of experimental and control groups in social adjustment and the average of experimental group was more than control group (P ˂ 0.05). But there was no significant difference in the emotional adjustment and academic adjustment between groups.

Conclusion: To increase the social adjustment of children in preschool centers, storytelling especially Quran folktale can be used.