Intranet and extranet information service integration system

The invention discloses an internal and external network information service integration system, which comprises an interface service unit, an information processing unit and an information transmission unit, the interface service unit is used for providing internal and external network application service interfaces and performing unified management on the application service interfaces; the information processing unit is used for storing, processing and distributing information of an internal and external network interaction request and constructing an information transmission security policy; the information transmission unit is used for transmitting interaction information between an internal network and an external network according to the information transmission security policy; wherein the information transmission unit realizes information transmission between an internal network and an external network through an internal and external network application service interface. According to the invention,