The invention discloses a method and a system for predicting the motion trajectory of a shuttlecock. The system comprises a first image acquisition device, a second image acquisition device and a data processing device, wherein the first image acquisition device is used for collecting at least one first image of the shuttlecock moving in the air; the second image acquisition device is used for collecting at least one second image of the shuttlecock moving in the air; the data processing device is used for synthesizing the three-dimensional spatial image according to the first images and the second images and judging and predicting the trajectory drop point of the shuttlecock according to the three-dimensional spatial image. The system is capable of accurately predicting the motion trajectory of the shuttlecock and good in predicting precision.