The main purpose of this study was to offer a basis to investigate the effects of leisure activities inside school on physical fitness, physique, physique, index of elementary school students. To accomplish the purpose, 3th grade students (15 boys , 15 girls0 in elementary chool of Y province, chung-nam hane been trained 30~60 minute per day, 5-times per week, for 10-weeks at leisure activities time, After, to be compared with the control group (15 boys, 15 girls). Pre and post measurements of physical fitness, physique , phywiqu index of the subjects were processed by means of the SPSSWIN 10.0 verson program . The average and the standard deviation of the measurements of each group were conered with the t-test. The conclusions as follows: 1) In the physical fitness test, male- experimental group showed statistical significance on all event. While the control groups showed in the 50 meter sprint. Female - experimental group showed statistical significance all variables too, while the control groups showed in the 30-second sit- ups . 2) In the physique test, all groups showed statistical significance on all variables. In the conclusions, physique was influenced not train fo shot period but natural growth. 3) In the physique index, all groups showed statistical significance on the body- weight ratio, sitting height ratio, BMI