The invention discloses a middleware architecture based on an aviation seat reservation system. The middleware architecture comprises an external seat reservation system application, middleware and an aviation communication system, wherein the middleware comprises a service protocol layer, a service node layer, a service classification layer and a service distribution layer; the service protocol layer is composed of a service request interface and a request processing module. According to the invention, a unified middleware service is provided, the E-build interface communication and the PID account communication can coexist in the middleware architecture, and meanwhile, the interaction between the PID account and the aviation host is realized through a configuration simulation mode, so that an aviation system can support all services by using one set of middleware. According to the invention, the problems of tedious operation and high cost of the existing business operation modes such as reservation and the like of communication between the airline company and the aviation information host are solved, and the downstream business system can use aviation information resources and data more conveniently, safely and controllablyThe invention discloses a middleware architecture based on an aviation seat reservation system. The middleware architecture comprises an external seat reservation system application, middleware and an aviation information system, wherein the middleware comprises a service protocol layer, a service node layer, a service classification layer and a service distribution layer; the service protocol layer is composed of a service request interface and a request processing module. According to the invention, through providing a unified middleware service, E-is realized; the middleware architecture has the advantages that two interaction modes, namely the buit interface communication mode and the PID account communication mode, can coexist in the middleware architecture, and meanwhile, the interaction between the PID account and the aviation information host is realized in a configuration simulation mode, so that the aviation information system can support all services by using one set of middleware. According to the invention, the problems of complicated operation and high cost of the existing service operation such as seat reservation by communication between the air traffic control unit and the air traffic information host are solved, and the downstream service system can use air traffic information resources and data more conveniently, safely and controllably.