Information flow refers to the content information that users are interested in automatically generated by various platforms and applications under the Internet environment. This information is presented on users' devices in various forms, such as news information, short videos, pictures, audio, Weibo and so on. The formation of information flow is realized by computer algorithms, which dynamically push content suitable for users' consumption according to many factors such as user behavior, interest and interaction. Although the content of information flow is varied, it should satisfy users' tastes and make users feel happy and satisfied.

In the era of mobile Internet, information flow has become a very important way of information dissemination. This kind of streaming media not only includes news and entertainment content, but also covers all kinds of life information, such as shopping information, travel strategy, food sharing and so on. Through the information flow, users can not only know the latest news information, but also help users to make accurate commodity positioning and purchase decisions. Therefore, information flow has become an indispensable marketing channel for merchants, which has successfully brought them many commercial benefits.

Information flow is a fast way to deliver information, which can deliver important news to the whole world in real time. For example, when a major natural disaster occurs, various news websites and social media will inform the public of the latest situation through information flow. In addition, information flow can also be used to transmit other types of information, including educational information, medical information, political information and so on. In this way, information flow has become one of the main ways for people to obtain all kinds of information. Not only that, information flow is also helping people to better understand various problems and promote the scientific, cultural and economic development of society.