The investigation was based on community women whose ages were 30-65 years old. The results of this study were as follows: In osteoporosis preventing knowledge, the mean scores were 10.18 and the rate of correcting answer was 67.9 %. In health belief, women perceived more disease sensitivity in osteoporosis (M=3.00, SD=0.69), agreed that osteoporosis was a server disease (M=4.04, SD=0.92), benefit from taking prevention behavior (M=3.96, SD=0.45), but felt some difficult to take action (M=26.09, SD=4.04). In behavior, most of women could take prevention behaviors (M=26.09, SD=4.04). The investigation findings: Women's knowledge was negatively related to age, and positively related to calcium intake (r=-0.12. p＜0.05; r=0.45. p＜0.05). Duration of breast-feeding was negatively correlated with perceived severity, perceived benefits, and perceived barriers (r=-0.26, p＜0.05; r=-0.32, p＜0.05; r=-0.22, p＜0.05). Women's Osteoporosis preventing behavior were positively related to their perceived health status and number of children; and negatively related to the age when fracture happened (r=0.14, p＜0.05; r=0.16, p＜0.05; r=-0.63, p＜0.05). Base on the results of this investigation, women saw prevention of Osteoporosis as difficult. As the mean while, they revealed that women did not know how to reduce the barriers. As the result, community nurses should realize the reasons of women's difficulties and learn effectively strategies to reduce their perceived barriers.