This study determined the medical service of domestic violence cases in the current network of domestic violence in Taiwan, such as medical treatment of domestic violence offenders, appraisal assessment and training of professional. It has two parts, the first part is about the victims of domestic violence, and the second is about the offenders of domestic violence. Data from this study were from a convenience sample of 28 (open questionnaire) and 7 (foucs group) professionals by methods of qualitative. The results provide for analysis of the medical service’s current situation, these findings also give some suggestions to improve the medical system and future research.