Cyber violence is a controversial social topic which worths exploration. In the form of languages，characters，pictures and so on，cyber violence inflicts people in the cyberspace. It imposes cyber punishment upon people in the name of justice and wantonly intruded people’s privacy. To sum up，cyber violence is the brutality and carnival of the majority，the huge challenge to the present legislation. To curb cyber violence，netizens should upgrade their media literacy and improve their ability of distinguishing between right and wrong，martial selection and resistance towards vulgar culture. And besides，personal data protection law should be made as soon as possible to clean the cyber space.