Motor skills are considered important for children's physical, social, and psychological development. Pre-school age seems to be decisive for the development of motor skills. Our study's aim was to investigate the effect of 12 weeks game education on the motor development of pre-school children aged 4 to 6 years. In the research, experimental method pre-test / post-test and control group design was used. In this study, a total of 30 boys and 30 girls were enrolled. The research consisted of a total of 60 children who were studying in pre-school and were selected via random sampling model. In order to collect data, 12 weeks game education was conducted on participants. Motor Performance test protocol, developed by Morris, Atwater Williams and Willmore in 1980, was used on both experiment and control group children, in order to measure their motor performance before and after 12-weeks game education. Average and standard deviation values were calculated for the data collected. Children's throwing, catching, long jump, vertical jump, running, and stopping skills were measured. Mean and standard deviations of the data obtained in the study were taken. A statistically significant difference was found between the experimental and control groups in terms of post-test. A statistically significant difference was found in the experimental group pre-test and post-test comparisons. In these comparisons, the post-test values were found to be higher than the pre-test values. According to the results of the research, it is necessary to apply more long-term applications to increase the positive effect of 12-Weeks basic game education at the levels of motor development in children aged 4 to 6 years old.