The first thing to consider when doing propaganda soundtrack is copyright, whether to use other people's copyrighted music, or to adapt it, or to be purely original. If this problem cannot be solved, then the background music cannot be used. Secondly, the Beijing music of the propaganda film must fit the theme and emotional tone of the propaganda film. Third, control the insertion time and volume of background music in the promotional film, and don't let others take over. You should know that narration and dubbing are the protagonists, and the role of background music is to assist narration and sublimate emotions, which is also the place to test the strength of an audio later stage.