Mobile Securities has broad application prospects, and users’ participation is the key to the success of mobile securities. In view of the barrier that users held a low adoption intention of mobile securities currently, this paper makes an expansion on Technology Acceptance Model by taking information quality, structural assurance and reference group into consideration and develops a theoretical model of user adoption on mobile securities in order to explore the possible influencing factors that play a role in user adoption. By questionnaire survey, we collect 174 valid questionnaires, conduct statistical analysis and Structural Equation Modeling analysis by SPSS and AMOS, and then test the theoretical model and revise the theoretical mode. Finally, we make a discussion on the results of data analysis and point out the direction of future work.