Differences of cultural and physical activity of daily life are found between tribal and non-tribal community in India. Tribal group also called ethnic group of community other than tribal community people call non-tribal people. The present research study was to find out front and rear arm elbow angle and compare them in acceleration phase for tribal and non-tribal school boys. Total 120 tribal and non-tribal school boys were selected as subject. The subject was divided the age groups i.e., 10-11 yrs., 12-13 yrs. and 14-15 yrs. each age group consists 20 tribal and 20 non-tribal boys. The videography was done during 100 m sprinting. The front and rear arm elbow angle analyzed from video graphic movement by Kinovea 0.8.15 Motion analysis software. The average front arm elbow angle of (10-11) yrs., (12-13) yrs. and (14-15) yrs. tribal boys were 77.000, 78.000 and 81.600 whereas non-tribal boys were 78.850, 81.350 and 85.900 respectively. The front arm elbow angle in acceleration phase increased with increase of age for both tribal and non-tribal boys and front arm elbow angle increased towards the 900 tribal and non-tribal sections. Similarly, the rear arm elbow angle for (10-11) yrs., (12-13) yrs. and (14-15) yrs. tribal boys were 112.250, 105.550 and 113.450 whereas non-tribal boys were 111.050, 110.100 and 108.000 respectively. The rear arm elbow angle decreased with increase of age for tribal and non-tribal groups except one tribal group. The rear arm elbow angle was more than the 900 and it occur 105.550 to 113.450 for tribal whereas 108.000 to 111.050 for non-tribal boys. The difference between tribal and non-tribal school boys for front and rear arm elbow angle was not statistically significant at 0.05 level of significant.