Abstract: Special weathers on route is a main cause of aircraft flight accident. Aiming at this problem, various aircraft diversion strategy is given by using logic reasoning methods based on simulation graphics of aircraft flight track,weather position and running direction of weather. Combined with a violent typhoon 'Lekima' in 2019, the moving characteristics of the weather system near Tianjin approach area are analyzed and verified using the proposed rerouting strategy. Results show that the current strategy is feasible and effective.

Key words: aircraft rerouting strategy, special weather, air route planning