In this study, it is aimed to determine the effect of computer-assisted instruction while teaching the subject seasons to preschool students on the academic success. The sample of the study consists of 86 children from the nursery classes of private and official schools in Agri city center. As data collecting tools General Achievement Test used as pre test-post test and Module Tests applied after finishing the subject every week. The collected data is calculated with SPSS 16.0, and descriptive statistics and independent t test are used in the analysis of the data. In the light of the obtained data, it is determined that the academic success of the group on which computer-assisted instruction has been applied is quite higher than the other group's academic success on which traditional instruction has been applied, there is no difference between the success of the school boys or girl, and success is in favor of the students in private schools.