Abstract: We summarized the research status of wearable devices,and elaborated the issues related to model construction of user acception.Taking smart jewelry, a branch of wearable devices,as an example, we established a user acceptance model based on UTAUT model, to explore smart jewelry user acception and user behavior, pointing out that the user acception of smart jewelry is an important research direction for consumer in the smart jewelry market in the future.The model includes the three conventional core dimensions of performance expectations, effort expectations and community influence, and in additional we added two dimension of price perception and fashion sense for smart jewelry attributes, using gender and experience as moderating variables to carry out related research.The results showed that performance expectation, effort expectation, community influence and price perception in the model help to promote acception significantly and fashion perception does not have a positive effect on user acceptance; and user experience plays a negative regulatory role; and the adjustment of gender factors is not significant.