With the rise of a new economic form named “Internet +”, the traditional mobile phone sales industry is also seeking the new cooperation opportunity, hoping to find cross-border integration and use Internet information to improve sales levels. Mobile phone sales industry will integrate efficient and optimization information which obtained from the Internet, then put forward more market-oriented sales program in order to access to consumers’ recognition and thus make a high sales record. In order to meet the needs of mobile phone sales industry, this paper has designed and developed the Java-based system, and developed the online mobile phone sales system with iPhone as an example. Firstly, the demand analysis and feasibility analysis of the system were carried out. After the feasibility of the system was analyzed, the overall design and function design of the system were carried out. The system use Java, servlet,. Net and other technologies, combined with oracle database, and use object-oriented approach to the preparation of procedures to achieve the function, including the users’ login and registration, purchasing of mobile phones, paying orders and the administrator’s mobile phones’ model management, mobile phones’ information management, users’ information management and modifying administrator’s information.