The newly released Anti Domestic Violence Law of The People's Republic of China(hereinafter referred to as ADVL)further enriches our legal norm of family. And it also clearly defines legal boundary and limit of family member whose relationship is based on the parental right.Under this law, the domestic violence is an infringement in physical,mental and other ways among family members by assaulting,binding,maiming,restricting personal freedom and abusing,intimidating usually. So, the domestic violence is an illegal act. It is prohibited by law. But the society is diverse; the complexity of the social situation is far beyond the law. It is every legal person's pursuit to to properly apply the law to give the offender related legal responsibility, get good social consequences. In terms of the special characteristics of illegality of domestic violence, this papers gives a comprehensive analysis and study on domestic violence, which is helpful to understand and carry out ADVL.