PURPOSE: To evaluate the clinical distribution of bilateral non-contemporary hip fractures regarding to fractures type, risk factors and fractures interval in elderly patients. MATERIALS AND METHODS: 24 bilateral non-contemporary cases among 621 hip fractures from Sep. 1997 to Dec. 2004 were evaluated regarding to gender, age, incidence, Singh index, causes, interval, fracture pattern, operative methods and underlying diseases between the two fractures retrospectively. RESULTS: The distribution is as follows: males to females (5:19), incidence (3.86%), mean age (76.9 years and 78.9 years), average Singh index 2.5 degree (2~4) and 2.1 degree (1~3) respectively. 21 cases (87.5%) in both fractures suffered from minor slips and 19 cases (79.1%) occured within 3 years of the first fracture and 17 (68.1%) cases were same type fractures. Bipolar hemiarthroplasty was performed in 12 cases. All but one patient had underlying cardiovascular diseases and CVA sequales. CONCLUSION: To prevent the bilateral non-contemporary hip fractures, surgeons must bear in mind that osteoporosis treatment, control of underlying cardiovascular diseases and CVA sequales, and the effective rehabilitation is very important.