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This thesis is the investigatation of the research progress on the epidemiology of primary osteoporosis in recent five years.Methods: The research methods and characteristics in related literature were analyzed.The results of the study on the epidemiology of osteoporosis and the risk factors were classified and investigated.Results: The research on the epidemiology of osteoporosis is numerous,but lacking of reasonable designs,strict processes and standard quality controlling.Conclusion: Through the summarizing of the research progress on the epidemiology of osteoporosis,it is better to guide the clinical work effectively.