Flight route trajectory simulation method

The invention provides a flight route trajectory simulation method, which is applied to general low-altitude navigation of an aircraft, and comprises the following steps: setting a plurality of target situation points of the aircraft in a flight route, setting the flight route of the aircraft between adjacent target situation points as a route segment, and presetting geographic position coordinates of each target situation point and/or flight parameters of the aircraft in each route segment; calculating the length of each route section according to the preset geographic position coordinates and/or the flight parameters; simulating and generating a plurality of sub-situation points according to the length of the route segment; calculating the position information of each sub-situation point; sending the position information of the sub-situation points of each aircraft in each route segment to a receiving end in parallel through multiple threads, so that the flight pause function of each aircraft is achieved; a