Homemade violence of husbands during pregnancy is a bitter experience and according to many complications for the mother and fetus can affect the outcome of pregnancy. Therefore, this study aimed to assess the knowledge, attitude and performance of pregnant women toward the homemade violence of husbands during pregnancy is conducted. In order to apply the results for the prevention and early detection of mother and family health. This study was done with aim of determining the knowledge, attitude and performance of pregnant women toward the homemade violence of husbands in women referred to control centers during the pregnancy associated to Hamadan University of Medical Sciences in 2013-2014. In this descriptive study, 384 pregnant women referred to health centers affiliated to Hamedan University of Medical Sciences were assed with simple random sampling method for 6 months. The data collected through the researcher made questionnaire consists of four sections: personal information, questions to assess knowledge, attitude and performance of pregnant women toward misbehavior of husbands was completed through interviews of research units. In order to analysis the data, Chi-square test and SPSS software version 18 was used. The average score of knowledge, attitude and performance of pregnant women in order were, 12.23±6.27 out of 30, 56.90 ±5.91 out of 84, 11.14±1.34 out of 15. In total, 58 of subjects (15.10%) of the samples had good knowledge and 8 subjects (2.8%) positive attitude, and 378 (43.98%) achieved the desired performance. Statistical tests showed a significant relationship between knowledge with occupation and education. Also there was a significant relationship between subjects attitude score with education, occupation, and number of pregnancies. (p<0.05). The results of studies showed that there was a direct and significant relationship between knowledge with attitudes, and knowledge and performance. (p=0.001). According to the findings, average knowledge and attitude of the majority of the samples were neutralized and most mothers have a good performance. As regards that misbehavior against women had unpleasant consequences during pregnancy and after that mother and child to follow Increasing awareness and educate the community in meeting the challenges of the transition can be effective in reducing this phenomenon.