Objective To understand the types, distribution and correlation of postgraduates' constitution of traditional Chinese medicine(TCM), explore the methods and approaches to improve the postgraduates' constitution, and give TCM recuperation methods, health intervention and management programs in order to improve the postgraduates' health level. Methods The constitution types of 600 postgraduates were investigated and analyzed by issuing the Classification and Judgment Table of Traditional Chinese Medicine Constitutions, and the correlation between the constitution types and the constitution of TCM was studied from four aspects: BMI, dietary habits, exercise, sleep schedule and rest. Results The subjects were mainly composed of calmness, and the pathological constitutions were composed of Yang-deficiency and Qi-deficiency. There was a correlation between high BMI and phlegm-dampness constitution(P<0.01), between spicy diet and phlegm-dampness, damp-heat and Yin-deficiency constitution(P<0.01), and between lack of exercise and Qi-deficiency constitution(P<0.01). There was a correlation between irregular sleep schedule and constitution of Yang deficiency, phlegm dampness and Qi deficiency (P<0.01). Conclusion This study has found the correlation between TCM constitution type and BMI and life style among graduate students, and thus has certain guiding significance in developing TCM recuperation methods, health intervention and management for this population.