First of all, people's lives have changed greatly due to the spread of SNS.However, bullying has also emerged as a problem.Today, I'm going to talk about bullying on SNS.Bullying on social media is an act that hurts other people on the Internet. Examples include slander, spread of personal information, and exclusion from groups. Anonymity is a characteristic of bullying on social media. On SNS, you can hide your real name and photos of your face. Also, since the information is highly disseminated, it spreads easily once posted. Bullying on social media can lead to psychological damage .Action is needed to address these serious problems. First of all, it is important to be thoroughly informed. It is necessary to provide SNS users with information on the definition of bullying, reporting and counseling services, and create an environment where victims can easily ask for help. In addition, it is necessary to understand the risk of bullying on social media through repeated dialogue about bullying in educational settings. Second, we need to strengthen the laws and regulations. By tightening legal sanctions against bullying on social media, I think the perpetrator will refrain from acting. Bullying on social media has been mentioned as one of the modern social problems. Measures must be taken to ensure that not only victims but also perpetrators will be greatly affected.