The recent Hangzhou Wife Killing Case and a series of violent behaviors in intimate relationships have aroused widespread social concern and anxiety and fear of some female groups. This article analyzes the violent behaviors in intimate relationships with specific cases such as the murder of wives in Hangzhou and the burial of dead bodies of female college students in Nanjing. The causes of violence in intimate relationships are analyzed in detail through the three major factors of physiology, psychology and society. At the same time, it proposes methods to solve violent behavior in intimate relationships.