The aim of this study is to investigate the effect of contrasting training by the French method on the development of the rebound force index and the accuracy of the projected strike for squash juniors. The research sample was chosen by the intentional method, and it included (10) squash juniors under 15 years old at Al-Zohour Sports Club and registered in the Egyptian Squash Federation 2021-2022 AD, and they were divided into two experimental and control groups. The training program lasted 8 weeks, with 3 training units per week, and the most important results of the research were the contrasting training in the French method, which has a positive effect on the development of the rebound force index, some physical abilities (muscular strength, acceleration, the speed of changing direction and the movement speed of the two men) and the accuracy of the skill of the dropped blow. For squash juniors, there were statistically significant differences between the experimental and control groups in the telemetry of the rebound force index, some physical abilities (muscle strength, acceleration, speed of changing direction and motor speed of the two men) and the accuracy of the skill of the drop kick for the squash juniors in favor of the experimental group.