Objective The aim of this study was to investigate the bone mineral density（BMD） of adults’ finger bone in order to study the incidence of osteoprosis and provide scientific basis for prevention and treatment of osteoprosis.Method MetriscanTM was used to determine the bone mineral density of adults finger in 4 174 people.Results Among them

level of T was（0.123±1.124） in men group.There were 84.6% of normal level and 12.8% of osteopenia and 2.6% of osteoprosis;level of T was（-0.101±1.421） in women group that there were 76.9% of normal level and 12.9% of osteopenia and 10.2% of osteoprosis.Among people aged over 45

level of T and BMD were decreasing while age was increasing.The decreasing rate was significantly higher in women than in men（P<0.01）.The osteoporosis detection rate for women starts to increase after 50-year-old

and men’s osteoporosis detection rate increases significantly after the age of 70.The incidence of osteoprosis was significantly higher in women than in men（P<0.05）.Conclusion The incidence of osteoprosis is significantly higher in old women than in old men.Effective prevention and treatmant is to be enhenced.