Add to ORKGInheritance law is one part of the civil law as a whole and is the smallest part of family law. Inheritance law in Indonesia is still very pluralistic covers three areas of law, namely the customary inheritance law, Islamic law and the civil law of inheritance (BW). The third system of inheritance law applies despite together but in reality do not always go hand in hand, and often lead to conflict. For people who are Muslims, Islamic inheritance law is based on Islamic Law Compilation (KHI) is not a legal provision that is imperative. Thus Islamic law for Muslims in Indonesia are voluntary (choice of law). How to shape legislation inheritance law in Indonesia, be a topic of studies in this paper