Civil aircraft route trend planning method, system, equipment and medium

The invention relates to the field of civil aviation operation, in particular to a civil aircraft route trend planning method, system and device and a medium. Acquiring a takeoff airport and a destination airport, judging whether the takeoff airport or the destination airport exists in the first controlled route, judging whether a route common point exists under the condition that both the takeoff airport and the destination airport exist in the first controlled route, and splicing the common route points under the condition that the route common point exists; outputting a spliced company route in the controlled first route; calculating to obtain similarity according to the control No.1 airway and the spliced company airway, and obtaining an optimal planned airway with the highest similarity; and the reusability is calculated according to the optimal planned route and the control No.1 route section with high similarity, so that the route design is more reliable, and the route design efficiency is improved. 本申