The meeting was affected. The significance of putting up posters lies in communication, so that colleagues attending the meeting can help you hang them up. Academic conferences without posters will be affected. It is very necessary to put up posters at the conference, which not only has the solemn feeling of the conference, but also shows the time, address and logo. Whether the content of the poster is vivid or not determines whether others will listen to your work. A good paper poster should have enough headlines to attract the audience, make the information conspicuous, introduce the main works in 20 seconds, and save time.