Cyber-violence appears to involve acts of continuous and repeated physical, sexual, psychological damage, or economic harm or suffering to others in virtual space using information and communication devices, including computer systems, in order to cause, promote, or threaten violence. Cyber-violence has been a social problem since the early 2000s when Internet use became common but the seriousness of the problem is getting worse over time rather than alleviating partially due to the expansion of smart devices. Recently as the damage caused by cyber-violence has expanded to the general public and become low-age, social demands for preventive and damage relief measures are high. Recently, the number of cases of personal information leakage such as phishing and hacking has soared and the need to effectively control cyber-violence has been emphasized due to the online spread of school violence. Therefore, this research examines the concept and type of cyber-violence and also reviews the theoretical analysis frame related to cyber violence, and finally seeks counter measures in order to respond to cyber-violence problems.