Badminton is a sport that technical features are at the forefront. For an effective performance, it is necessary to have very good technical capacity. Another factor that affects success in badminton is the ability to anticipate and make decisions. In order to be successful in sports, perceptual competencies are needed as well as physical competencies. In this context, the aim of this study is to examine the effect of 8-week visual reaction training on detection time in 10-12 year old badminton players. The research population consists of a total of 20 badminton athletes, 10 boys and 10 girls, who are of school age between the ages of 10-12. A weekly visual reaction training was applied to the athletes and a preliminary test was performed with the Bassin anticipation timer device (Lafayette Instrument Company, model 35575) before and after the training. As a result, according to the results of the Same sample t-test, there was a statistically significant difference between the pre-test and post-test in the research group. While there was a difference (r=001; p<0.05), no difference was seen in the Control group (r=.056; p<0.05). According to these results, it can be said that visual reaction training in addition to classical training contributes to the development of perception performance.