Harmony on the Internet usually refers to a cultural phenomenon on the Internet that prevents the use of violent language, violence, and erotic content to maintain the harmony, stability, and security of the Internet environment. In the online world, people often use various tools to communicate and share. These tools may include text, pictures, audio, video and other forms of content. However, there are often some negative messages in these contents, such as violence, hatred, discrimination, fraud, etc. These messages may have a negative impact on the online community. Therefore, people in the online community usually take various measures to maintain the harmony of the network, such as limiting the release of bad information, reviewing bad information, strengthening community management, etc. Harmony on the Internet is a social and cultural phenomenon. It involves people's behavior and attitudes on the Internet, including the use of language and tools, the handling and review of bad information, etc. Maintaining harmony on the Internet was one of the important measures to promote the development of the Internet and protect the rights and interests of Internet users.