Abstract: Accurate and effective track points prediction not only can ensure the safety and stable transition of airspace, make use of resources in a sensible manner to improve operational efficiency, but also can be used to the availability of RAIM prediction during flight for the sake of flight safety. The WGS-84 coordinate system recommended by the international civil aviation organization (ICAO) is the world standard for airborne navigation systems. The WGS-84-based T.Vincenty embedded coefficient method is analyzed to calculate the coordinates of the track points and the time of the crossing point of the cruise phase by means of T.Vincenty method. The simulation validates the accuracy of the land subject matter back and forth calculation and verifies the reliability of the track points prediction through the actual flight data.