Objective To study the distribution of TCM constitution of patients with postmenopausal osteoporosis to analyze the correlation between constitution and osteoporosis.Methods The pre-designed questionnaire and the method of case-control were used to classify and analyze the constitution of postmenopausal osteoporosis patients and normal population for comparison to understand the correlation between constitution and osteoporosis.Results The ratio of constitution type in two groups had statistical difference（P<0.05）

and the constitution of yang deficiency

Qi deficiency

and blood stasis of postmenopausal osteoporosis patients was higher in ratio than normal population.The constitution distribution of patients with different degrees of osteoporosis at different ages was different（P<0.05）.Conclusion The constitution of postmenopausal osteoporosis patients is mainly yang deficiency;the ratio of Qi deficiency constitution in early stage of postmenopausal osteoporosis is higher;while that of yin deficiency and blood stasis constitution is higher in advanced stage.This is in accordance with basic theory of traditional Chinese medicine.