Top potential energy catapult rainmaking method and system based on smart grid and hill lie

The invention relates to a top potential energy catapult rainmaking method and system based on a smart grid and the hill lie. According to the method and system, upward tracks and downward tracks of water bin type upward and downward track cars are arranged based on the hill lie, a catapult flying track and a track end fixed pulley set are arranged up the hill, track upper and lower end fixed pulleys are arranged down the hill, a cable connected with the upward track car is wound around the upper end fixed pulleys, the end fixed pulley set and the upper end fixed pulleys in sequence and then is connected with the downward track car, and the upward track car is connected with the downward track car through a cable wound around the two lower end fixed pulleys; an upward reciprocating car and a downward reciprocating car for catapulting a rainmaking fixed wing electric unmanned aerial vehicle are fixedly connected to two cable sections on the flying track respectively; the upward and downward track cars are prov