Douyin live broadcast does not necessarily have to be vertical like the video. Although the Douyin platform encourages users to focus on vertical videos, there is no mandatory requirement in live broadcast. Users can choose the appropriate live broadcast method according to their needs and creativity, whether it is vertical, horizontal or other innovative forms. However, considering the user's viewing comfort and experience, vertical live broadcast may be more popular because it is more suitable for the viewing habits of mobile screens. In general, Douyin live broadcast does not have to be as vertical as the video, but vertical live broadcast may be more in line with user needs and platform recommendations.