The purpose of this study is to evaluate the association between the results such as height, weight, body index mass, laboratory values, drinking, smoking habit which is performed in Health examination and Sasang constitution. From this, we want to suggest the objective standard for discriminating Sasang constitutions. The subjects of this study were 1,570 college freshmen for which QSCCII were surveyed to discriminate of Sasang constitution. All the data were analysed by descriptive statistics and chi-square test for explanation of interesting variables. We used logistic regression model to extract significant factors for discriminating Taeeumin from Soeumin, Soyangin from Taeeumin, Soeumin from Soyangin and to get each odds ratio. Taeeumin group showed significantly higher AST, TG, LDL, BUN, Creatinine level and lower HDL level. And Taeeumin group also showed the hightest value of BMI ($24.8{pm}3.65;kg/m^2$). And according to logistic regression analysis, BMI and Weight were the most effective factors for discriminating each constitution groups. From the above results, we have to consider BMI as an objective standard for discriminating Sasang constitutions.