[目的]建立壮族女性定量超声骨量峰值,为广西壮族人群骨质疏松症的诊断和防治效果的评估提供依据。[方法]采用定量超声法对25～70岁祖辈三代双亲均为壮族的746例健康女性志愿者进行跟骨定量超声测定,以5岁为一个年龄组。[结果]峰值骨量出现在35岁～组,BUA峰值为(64.83±3.78)db/MHz。在25～34岁年龄范围内BUA值随年龄增大而增大,40岁～略有下降,但仍处较高水平,45岁～后随年龄增长跟骨BUA值逐渐下降。50岁～组至65～70岁组骨量正常百分比由58.87%降低至7.08%。[结论]建立了壮族女性定量超声骨量峰值,提供了该地区定量超声的BUA参考值和骨质疏松症诊断的科学依据。 [Objective] To establish the quantitative ultrasound bone mass peak value of Zhuang women and provide evidence for the diagnosis and prevention and treatment of osteoporosis in Guangxi Zhuang nationality. [Method] Quantitative ultrasound was used to measure the calcaneal quantitative ultrasound in 746 healthy female volunteers, all three generations of ancestry from 25 to 70 years old, with 5 years old as an age group. [Results] The peak bone mass appeared in the group of 35 years old, BUA peak was (64.83 ± 3.78) db / MHz. BUA increased with age in the age range of 25 to 34 years old, slightly decreased at 40 years old, but still remained at a high level, and gradually decreased with age at 45 years old. The percentage of normal bone mass from 50 years old to 65 to 70 years old decreased from 58.87% to 7.08%. [Conclusion] This study established quantitative bone mass peak value of Zhuang women and provided the scientific reference of BUA reference value and diagnosis of osteoporosis in quantitative ultrasound in this area.