Following are the results of the study of the correlation between one`s physique and physical strength, For the study, 242 boys in the and grade of H Middle School in Pusan were randomly elected, 1, In terms of the correlation between a blood type a physique, the students with blood type A had the best physique, The second best was Hood type O, the third was blood type AB, the last was blood type A. 2. With regard to correlation between a blood type a physique, blood type A student was good at the 1,600m race, the event of staying power. Blood type AB at push-up, the event of muscular strength, Blood type B at 50m race and the standing broad jump, Blood type O at flexibility area trunk flexion. 3. Correlation between a physique an physical strength with regard to blood type is 1) the correlation between height and physical strength showed that positive correlation(.001) of blood type B was the lowest at the area of trunk flexion betiding, Blood type B showed the highest correlation at the area of 50m race as negative correlation(-.485). 2) The correlation between weight and physical strength showed that blood type O had the lowest correlation at 50m race at negative correlation(-.010). Blood type AB recorded the highest correlation at the event of 50m race as negative correlation(-.418). 3) The correlation between obesity and physical strength showed that blood type 0 had the lowest correlation at 50m race as negative correlation(-.003). Blood type AB recorded the highest correlation at the event of push-up as negative correlation(-.650). 4) The correlation between a chest size and physical strength showed that blood type O had the lowest correlation at 50m race as negative correlation(-.003). Blood type AB recorded the highest correlation at the event of push-up as negative correlation(-.348).