The invention discloses a video pre-loading method based on network environment prediction. The method comprises the steps of S1, acquiring city public wifi service coverage information, thereby obtaining a city public wifi service data set; S2, acquiring current position information and movement information of a user through GPS, and determining a current network environment of the user through amobile terminal; S3, predicting a future position of the user according to the current position information and the movement information of the user and predicting a future network environment of theuser according to the city public wifi service coverage information; S4, adjusting a video pre-loading policy of the user according to the current network environment and the predicted future networkenvironment of the user; and S5, repeatedly performing the S2 to S4 until the user finishes watching a video.