Dr. TarekEzz-Eldin Ibrahim* The aim of current study was to investigate the effectiveness of training program to improve the special physical abilities of return serve in Tennis players U16 players. The experimental curriculum method was used in current study with pre and post-tests. Subject in current study were 18 players from the Tennis Club under 16 years. The subjects completed a training program during 10 weeks and 4 sessions per every week. Spss program was used for statistical analysis.The results showed that the training programhas improved the reaction and speed movements of return serve with percentage between (2.62 to 2.97 %) and the movement time of (7.55 %) and the accuracy was with (57.81 %).