A survey of blood pressure including its distribution, values of normal upper limits, and the percentages of high normal pressure of 1,113 children from 3-6 years of Uygur and Han nationalities in Wulumuqi was carried out. The mean values of systolic pressure and diastolic pressure, and the percentages of high normal pressure were lower in Uygur than in Han children, but only the difference of systolic pressure values was statistically significant.