The Purpose of the study was to scientifically assess the jumping ability of different sports persons. Forty boys of classes eight from Govt. Middle School, Gandhi Nagar, Jammu were selected at random as subjects and their average age was 13 years. The subjects were divided into four equated groups by computing means and standard deviation. Group A was trained in depth jump on 35cm and group B in 40cm and group C in 45cm for a periods of six weeks 3 days per week. F-test was applied and a post hoc test using L.S.D. test was used. The results revealed that depth jump is an effective method as compared to the control group and depth jump on 35cm, 40cm, 45cm are equally effective in enhancing vertical jumping ability of the subjects.