The radiological measurement of acetabular angle, iliac angle, iliac index and pelvic index were evaluated in 21 normal Korean infants and 49 newborns who were born in Chosun University Hospital from Apr. 1st, 1974 to Jun, 1974. The results obtained in this study were as followings: 1) In normal new-borns (49) a. The mean of acetabular angle was 28.72$pm$4.6 b. The mean of iliac angle was 50$pm$4.6 c. The man of pelvic index was 78.61$pm$6.1 d. The mean of pelvic index was 28.88$pm$3.1 2) The results of these measurements were somewhat smaller in comparison with European. 3) Acetabular angle and iliac angle were somewhat decreased in the process of growing as European.