This study aims to analyze how much the relationship: (1) leg muscle explosive power, (2) arm muscle strength, (3) between leg muscle explosive power and arm muscle strength together with open spike ability in the sixth semester students of the Department of Coaching Education, Faculty of Sports Science, Manado State University. The method in this research is descriptive method. The results of the multiple correlation coefficient test were obtained = 0.958 with the coefficient of determination Rsquare = 0.918. Based on the calculation of the coefficient of determination that the contribution of leg muscle explosive power and arm muscle strength together with the open spike ability of semester VI students of the Department of Coaching Education, Faculty of Sports Science, Manado State University is equal to Kd = r2 x 100% = (0.958) 2 x 100% = 91.8%. Furthermore, the remaining 8.2% is determined by other variables or external factors that are not the target of the study and is not explained one by one in this study. It turns out that the explosive power variables of leg muscles and arm muscle strength together have contributed 91.8% to the ability to open spike VI semester students of the Department of Coaching Education, Faculty of Sports Science, Manado State University. So the relationship between leg muscle explosive power and arm muscle strength to the ability of open spike together in semester VI students of the Department of Coaching Education, Faculty of Sports Science, Manado State University.