Objective To verify the clinical applicability of the published standard intervals (WS/T402-2012) for WBC , RBC ,PLT and Hb based on the health examination results of Han and Uygur populations in Urumqi .Methods This was a retro-spective study .The results of WBC ,RBC ,PLT and Hb from health examination individuals of Han and Uygur populations from August 2013 to January 2015 were collected ,9 307 health subjects age range from 20 to 79 years of the two nationalities were cho-sen using health examination information system .The percents of health subjects failed falling in the published standard interval were calculated to verify the judgment criterion ,fail falling rate < 10 .00% was regard as qualified .Results The test of normality revealed that the Han and Uygur′s results of all verified items were skewed distributions .The 2 .5% and 97 .5% percentiles of the results of two nationalities :WBC Han(3 .6 ~ 9 .6) × 109 /L ,Uygur(3 .8 ~ 9 .9) × 109 /L ;RBC Han Male (4 .3 ~ 5 .9) × 1012 /L and Female (3 .9 ~ 5 .2) × 1012 /L ,Uygur Male (4 .4 ~ 5 .8) × 1012 /L and Female (3 .9 ~ 5 .2) × 1012 /L ;PLT Han(130 ~ 351) × 109 /L , Uygur(145 ~ 370) × 109 /L) ,and Hb Han :Male (133 ~ 178)g/L and Female (111 ~ 153)g/L ,Uygur :Male (133 ~ 174) g/L and Fe-male (110 ~ 152)g/L .The significant differences of each testing item were found in the different sex from the same nationality(P<0 .01) .The percents of health subjects failed falling in the published standard interval were < 10 .00% in both Han and Uygur na-tionality .Conclusion The published standard reference intervals for WBC ,RBC ,PLT and Hb are applicable to our laboratory for the detection of Han and Uygur populations .