Objectives Uses the principal components analytic method to reflect the student endurance quality and the cardiopulmonary function indexs carries on the synthesis appraisal,and to confirms the principal components analytic method with the laboratory method the validity.Methods Hebei university of technology 33 ordinary university students have 10 indexs was used the principal components analytic method extraction principal components,to sort each student physique quality synthetic evaluation,to delimit the grouping to leave.The part of students take treatmill—Graded Exercise Testing(GXT) to gather cardiopulmonary function the correlation index,and using single factor variance analysis method confirmate rationality and feasibility of principal components analytic method in quality synthetic evaluation aspect.Results(1) According to the principal components synthesis expression,calculates the principal components value,the synthesis principal components value and sorting.Divides into three groups according to sorting.(2)The treatmill—GXT demonstrate that the maximal oxygen uptake,the oxygen pulse,ventilatory volume and so on,the strong trend group and the weak trend group compares has the remarkable difference(P0.05),strong trend group good in common group,common group good in weak trend group.Conclusion The principal components analytic method is suitable in the student physique quality synthetic evaluation,has the rationality,feasibility characteristic.