This article investigates the effects of family social capital and its components on domestic violence against women in the city of Khorramabad. This study is a survey and its statistical population is married women who are under cover of care centers. 383 people were selected and examined. Research findings indicate: 1 – direct physical violence is less frequent than indirect physical and mental-emotional violence. 2 Nearly half of participants show high social capital. 3- Social capital and its components play an important role in domestic violence against women, social capital alone, explained 58 percent of variance of domestic violence. 4 – In multivariate analysis, after social capital variable, women's education was the most important variable explaining domestic violence against women and was recognized as the most effective and most valuable resource in the process of women empowerment.