HLS protocol video-on-demand system-based method for realizing fast forward by using thumbnails

The invention discloses an HLS protocol video-on-demand system-based method for realizing fast forward by using thumbnails and belongs to the video-on-demand application field. According to the method, a slicing server is utilized to slice a program according to a certain time period; a frame of image is selected from each slice TS file so as to form a thumbnail; the generated thumbnails are compressed with the program adopted as a unit and are uploaded to a distributed center storage server; a thumbnail compressed file is downloaded to a video-on-demand server and is de-compressed; when requesting the program and performing fast forward, a user can directly visit the thumbnails in the video-on-demand server, and the thumbnails are presented as a queue above a progress bar, and the user can select process according to the content in the thumbnails, and the user clicks a corresponding thumbnail, so that the playing of a corresponding video file can be realized; and when requesting a film and performing fast forward, the user can directly visit the thumbnails in a flow pushing server through using the method of the invention, and the user can select progress according to the content in the thumbnails.