Embodiments of the present disclosure provide a video generation method, device and terminal. Embodiments of the present disclosure may perform effect processing for the image frames obtained from a video during shooting of the video or after the shooting of the video is finished using the selected video effect template, and compose the processed image frames to obtain the composite video. The problem of only presenting contents shot using a camera during the recording of a song and being not able to provide customized functions satisfying users' requirements may be solved. The effect of performing effect processing for all image frames or partial image frames in the shot video using the video effect template selected by the user to obtain the composite video satisfying the users' requirements may be achieved.