Abstract: The physical development of 1107 normal Kazak and Han newborns of gestational ageequal to or above 37 weeks' within 24 hours after birth was reported. The mean values of weight, body length, crown-hip length, head, chest and arm circumferences of Kazak were greater than those of Han. All measurements of males' were greater than those of females, and new-borns of multiparas were greater than newborns of primiparas in Kazak and Han. We thinkthat the physical development of Kazak newborns better than Han newborns was' due to racialdifference and new borns of multiparas in Kazak more than those in Han was due to the com-position of food and so on.

Key words: Neonate; Physical development; Anthropometry; Kazak Nationality