This study was carried out in order to determine the effects of Social Skills Training Program applied to 16 children between 48 and 60 months old children's motivation levels. The social skills program included behaviors such as cooperation, social interaction, empathy, sharing, and management of feelings and social maladaptation. A personal information form and the Dimensions of Mastery Questionnaire (DMQ18) for Preschool Children were used as data collection tools in the study. Social Skills Training Program was implemented for the children for 14 weeks, two days a week. between pre-test and post-test scores. Results show that there was a significant difference in the motivation levels of the children who completed the Social Skills Training Program and the effect of the program was permanent. By considering the contribution of social skills training programs to motivation in preschool education institutions, their restructuring can be suggested. Awareness training can be provided to families for contributing to the motivation levels of children by supporting their social skills.