1. A method of searching and collating video files, comprising: retrieving a semantic keyword according to video information, wherein the semantic keyword comprises title information; searching according to the semantic keyword in a video platform and obtaining a plurality of candidate video files; parsing each of the candidate video files by using a video semantic searching and collating process, selecting a plurality of matched video files and grouping the matched video files; and gathering the grouped matched video files in at least one video channel set, wherein the step of retrieving the semantic keyword according to the video information comprises: retrieving the semantic keyword from metadata of the video information or from source information related to the video information, if the metadata of the video information comprises a program title and a category, directly parsing the program title and the category in the metadata to serve as the semantic keyword, and if the metadata of the video information does not comprise the program title or the category, retrieving the program title and the category corresponding to an electronic program guide (EPG) of the video information through a network according a currently viewed channel number and a current time.