The online sport shop is an extension for the present private shop as well as a supplement for the traditional business structure. Sports goods is absolutely necessary for physical exercise, online network technology provides technical support to buy sports goods. With the increase of some software as well as hardware instruments, sport users can connect the shop system with family computers to do some common shop business, which remedies the deficiency of operating branches as well as operating time for traditional sport shop business. To realize adopting firewall on network layers which prevent extraneous attack and guarantee the safety for business data transportation on the public internet, integrity identification as well as key management should be simultaneously implemented on the application layers for sensitive data as well as encrypted information. In the context of the safety for internal sport shop business system as well as the safety for external shop business, this project preceded the internet safety design from the aspects of various sport shop business, business connection between the head office and branches, OA system and internet sport shop. In this project, high-quality firewalls are equipped on the panel points of all subsidiary shops of different levels, which guarantee the confidentiality of the IP package. Meanwhile, sport buyers’ sensitive information can be protected in business system from illegally distorted, which will achieve the safety functions of encryption as well as identification for sport business data.