Abstract: The online shopp ing system is based on B2C (Business to Consumers) model in accordance with the existing system, the status of online shopp ing and the design and development of e2commerce p latform. The sys2 tem p rovides users with user registration, user information management, commodity information, commodity pur2 chasing, ordermanagement and other functions. The report firstly describes the design of online shopp ing system, the status and development background, and then discusses the system design objectives, system requirements and design p rogram, more detailed discussion of the design of the system was realized. Finally, on2line shopp ing system testing of the system is put forward and imp roved. In terms of design, the system uses the B /S structure, while u2 sing JSP technology for dynamic page design from the safety of the system and code reusability to consider the use of p rocedures JavaBean key code package, and chooses the background databaseMy SQL database.