Objective：To analyze the results of venous blood cell counting among population accepted health medical examination in Chongqing and to provide references of adult blood cell counting in Chongqing urban district. Methods：The blood cells parameters were studied using the Sysmex XE-2100 hematology analyzer and the mean and standard deviation of these parameters were ana－lyzed. Using（P2.5，P97.5） to signify the interval of 95% included population. Results：Among all parameters，white blood cell count （WBC） and platelet count（PLT） were lower，the others were consistent with national guide to clinical laboratory procedures（the 3rd edition）. There were insignificant differences in WBC，red blood cell count（RBC），hemoglobin（HGB） and PLT between our data and those of Chongqing Daping hospital. There were slight differences in WBC，mean cell hemoglobin concentration（MCHC），mean platelet volume（MPV），platelet-large cell ratio（P-LCR） and platelet distribution width（PDW） between our data and those of Beijing area. There were differences in hematocrit（HCT），mean corpusular volume（MCV），mean cell hemoglobin（MCH），MPV，PDW，P-LCR and MCHC between our data and those of Gangdong area. Conclusions：Differences in blood cell counting are existed among different dis－tricts; it was necessary to analyze and summarize regularly.