依家庭暴力防治法規定，家庭內殺人案件不論是因為不堪家庭暴力殺夫，或是出於忌妒憤而殺妻，抑或是不滿叨唸而砍殺父母，不僅係為家庭暴力事件，亦屬發生於家庭成員間最嚴重之暴力犯罪事件。在家庭暴力事件層面，不乏從家庭暴力加害人、被害人或兩造互動關係等觀點，探討家庭暴力加害人實施或家庭暴力被害人身處家庭暴力環境之原因，然以家庭暴力刑事案件層面，則聚焦於刑事司法如何評價犯罪行為人殺害家庭成員之行為，特別是兩造間具有親屬關係、犯罪動機與被害人之行為具有密切關連，或是犯罪行為人犯罪行為時受有被害人挑撥或刺激等。 惟據衛生福利部針對家庭暴力事件通報總數，法務部對於家庭暴力刑事案件新收案件、起訴率之計算，以及司法院關於家庭暴力刑事案件裁判結果等統計數據，尚無法有助於掌握我國家庭內殺人案件發生情形或犯罪情狀，是本文透過整理我國90年至104年之實務判決，以發現我國家庭內故意殺人案件之被害人參與或促發的成分，透過整理歸納家庭內殺人案件存在之被害人刺激因素之行為型態，分析現行法院面對或評價犯罪行為中之被害人刺激因素有待檢討或釐清之處，進而借鏡外國立法例關於被害人激怒抗辯規定、學說文獻對於被害人激怒抗辯部分免責理論基礎之探討，輔以外國法實務判決適用被害人激怒抗辯情形之觀察，以求立證家庭內殺人案件中關於被害人刺激因素應有利於犯罪行為人量刑。 / According to the Domestic Violence Prevention Act, the domestic murder cases, whether or not because of unacceptable domestic violence or jealousy to kill his or her spouse, or dissatisfaction with the slaughter of parents, not only for domestic violence, also occurred in the most serious violent crime among family members. Aspect of domestic violence, many scholar pay attention about the injurers of domestic violence, or the victims of domestic violence, or the interaction of the injurers and victims of domestic violence. On the other hands, the criminal justice system concerned about the behavior of defendants who kill family members, especially those who have a kinship relationship, the motive of the crime is closely related to the victim's behavior, or the defendants provoked or stimulated by the victims. Based on Government agencies publish statistical data, it still can not help master about domstic homicide cases or crime situation in our country. In order to find the factors of victims in sentence, so that we try to search the judgment of domstic homicide cases upon 1991 to 2015, and figure out the short of these judgment about the evaluation of the victims’ behavior. Further more, through the foreign legislation on the defense of provocation, and the theory about the reason of the excuse of partial defense, and the application of the defense of provocation,it could be proved that the defense of provocation from victims in domestic homicide cases should be conducive to defendants’sentencing.