The aim of this study is to reveal the effect of long term adapted game aided physical education intervention program conducted on an individual with ASD and to conserve the achieved skills. The participant was fourteen years old during study and was fifteen years old when research was completed. The study took 15 months in total including 12 months of implementation process and 3 months of interval before retention test conducted on the participant. The Short Form of 2nd version of Bruininks-Oseretsky Motor Proficiency Test (BOT-2 SF) was used as a measuring set. Obtained data were evaluated graphically. According to the obtained data, we determined a development but BOT-2 SF started in different periods in 8 sub-dimensions under the title of fine and gross motor skills. When permanency test was obtained after an interval of 3 months for examined intervention program, it was clear that all skills except power sub-dimension were conserved. There was a decrease in a certain amount only in power sub-dimension. In the light of all these consequences, we can say that even though it is late, adapted intervention programs conducted on the individuals with ASD affect motor skill levels positively and it can be said that this development will be effective in increasing life quality of the individuals with ASD.