This study aimed to investigate the impact of mental imagery combined with physical practice on acquisition and retention of boy students' three steps basketball skills. Using randomly multi stage cluster sampling method 40 boy students from junior high school in Borojen selected and located in experimental and control groups. The subjects in Experimental group first imagined three steps basketball skills in his mind, and then a practical illustration practiced. The control group subjects only physical skills practiced. The practical sessions contained 3 hours in a week for 8-weeks. Research Instrument included the revised version of Hall and Martin's (1997) imagery motion questionnaire. Using analysis of variance with repeated measures and covariance analysis, data were analyzed. . Results indicated that combined method was effective than only physical exercise practices. According to the results, the physical education professionals recommend for enhancing the performance of athletes in different sports uses the method that does not need any expenses and possibilities.