Du Fu is very busy. On March 20 12, an online activity and topic of graffiti spoofing Chinese textbook illustration "Du Fuxiang" took place on Sina Weibo, which was initiated by high school students in Chinese mainland. "Du Fu is very busy" became one of the hot words on the Internet in China at the end of March, and was used by commercial advertisements. A public relations team and Sina Weibo successively claimed that this online marketing was planned for them.