The dissemination mechanism of Douyin mainly relies on personalized recommendations, the interactivity of short videos and the characteristics of short videos. Douyin uses the algorithm recommendation function to realize personalized recommendations of short video content. According to data such as user interest preferences, viewing habits, likes and comment behaviors, it accurately analyzes the user's taste and pushes similar or related video content to the user.

In addition, users can like, comment and share short videos. This interactive mechanism makes it easier for good short videos to be discovered by other users and then spread.

At the same time, each user has his or her own characteristics on Douyin. By adding tags, selecting music and other methods to add characteristics to short videos, this characteristic short video can often resonate with and interest users, thus becoming an important point for the dissemination of short videos.