The flight planning processing system relies on the public Internet to complete the information interaction between the flight user and the management department, and for the application, approval, information collection, information release and dynamic monitoring of the use of navigable airspace. Navigation flight users can rely on the system to report flight plans, accept flight plan approval and obtain relevant flight service information. Its working principle is that before the departure of the navigable aircraft ，planned declaration work can be carried out through the flight service station or flight plan declaration system, and then the navigation control Centre will receive the departure status by means of a navigable aircraft report . If the aircraft meet the take-off conditions after confirming, the navigation control centre approves the departure plan.