A video playback method and a video playback apparatus are provided. The object path extraction module of the video playback apparatus extracts at least one object path from an original video. The video synthesizing module of the video playback apparatus selectively adjusts said object path, so as to synthesize the object path into the synthesis video. The video synthesizing module determines the time length of the synthesis video based on the playback time length set by user, wherein the time length of the synthesis video less than the time length of the original video.