Volume 6 Issue 3, September 2019 Comparison Between The Position Of Adopted Children... (Agil Aladdin) 531 Comparison Between The Position Of Adopted Children In Islamic Law Inheritance Based On Islamic Law Compilation (KHI) With The Book Of Civil Law Agil Aladdin 1 and Akhmad Khisni 2 Abstract. This research aims to knowing position adopted child in Islamic Law Compilation with the Book of Civil Law; and Similarities and Differences position adopted children in inheritance of Islamic Law Compilation with the Book of Civil Law; This research method using normative juridical research with comparative approach (comparative). The results were obtained conclusions from Islamic Law Compilation in terms of inheritance, uninterrupted lineage adopted children with biological parents, who turned just the responsibility of the biological parents to the adoptive parents. The adopted child does not become heir of adopted parents. In Gazette No. 129 Of 1917. In Article 5 through Article 15. The position adopted child found in Article 12 to equate a child with a legitimate child of the marriage of the lift. According to the Civil Law for the adopted child the same as for biological children. While in KHI adopted children get as much as 1/3 of the estate left by his adoptive parents (Article 209 KHI) exception has been assigned the consent of all the heirs. Keywords: Heritage; Adopted; Testament. 1. Introduction In a marriage between husband and wife are expected to get a good descent and is a beacon of hope for both parents. The presence of children is a form of continuity of a family and the offspring as an investment in the future, but a marriage will be is not yet complete when the couple no children. Opinion Mudaris Zaini said that the desire to have a child is a human instinct, it is in line with the innate nature of human nature who felt that the child part of flesh and blood parents, who also will inherit also the special qualities of both parents. 3 A new family is said to be complete if it consists of a father, mother and child. Adoption usually occurs when couples have not or have no children. To overcome that desire to have a child one way to do is to adopt a child or adoption. In this case the adoption is set in law, based on Article 1 paragraph 2 Government Regulation No. 54 Of 2007 on the Implementation of the Adoption (PP 54/2007): "A legal act which distract a child from the environment of its parents, legal guardian, or other person responsible for the care, education and parenting, into a family environment with foster parents." Basically, adoptions aimed at the best interests of the child in order to realize the child welfare and protection of children, which is implemented based on local custom and the provisions of the legislation (Article 2 of Regulation 54/2007). Understanding the general adoption is an act of taking someone else's child under the provisions of law applicable in the relevant community. Meanwhile, according to deeds Supomo adopt a child are: 4 In Indonesia, inheritance law enacted three systems 1 Student Master of Notary, Faculty of Law, Sultan Agung Islamic University Semarang E-mail: rzkfzna@gmail.com 2 Faculty of Law Universitas Islam Sultan Agung 3 Mudaris Zaini, 1992, Adopsi Suatu Tinjauan Dari Tiga Sistem Hukum, Sinar Grafika, Jakarta, p 1. 4 R. Soepomo, 2000, Bab-bab Tentang Hukum Adat, Pradnya Paramita, Jakarta, p. 103.