According to applicable regulations, only Indonesian citizens can has ownership rights to the land. Foreigners who obtain ownership rights over land because of inherited inheritance or a mixture of wealth due to marriage, Indonesian citizens who have ownership rights then lose his citizenship, is obliged to give up that right within a year from the right is obtained or the citizenship is lost. If after term at that time the ownership rights were not released, the rights were deleted because the law and land fell on the State. But what if someone children with dual nationality obtain ownership rights based on land inheritance without a will. It is still not regulated further, where on one side of the child has the right to inherit the land and on the other hand, the child is a dual nationality recognized and regulated in the Citizenship Law. In this study, data collection was done using normative juridical approach namely library research by reviewing laws and regulations, and legal theories related to the issues discussed and the purpose of this research is to know the consequences of the law of inheritance without a will on land rights property obtained by minors with dual citizenship and for knowing legal protection for minors with citizenship doubles who obtain property rights based on a will without inheritance. / Menurut ketentuan yang berlaku, hanya Warga Negara Indonesia yang dapat mempunyai hak milik atas tanah. Orang asing yang memperoleh hak milik atas tanah karena pewarisan tanpa wasiat atau percampuran harta karena perkawinan, Warga Negara Indonesia yang mempunyai hak milik lalu kehilangan kewarganegaraannya, wajib melepaskan hak itu di dalam waku satu tahun sejak diperolehnya hak tersebut atau kehilang kewarganegaraanya. Jika sesudah jangka waktu tersebut lampau hak milik itu tidak dilepaskan, maka hak tersebut hapus karena hukum dan tanahnya jatuh pada Negara. Tetapi bagaimana bila seorang anak berkewarganegaraan ganda memperoleh hak milik atas tanah berdasarkan pewarisan tanpa wasiat. Hal tersebut masih belum diatur lebih lanjut, dimana di satu sisi anak tersebut memiliki hak mewaris atas tanah tersebut dan di sisi lain, anak tersebut berkewarganegaraan ganda yang diakui dan diatur dalam Undangundang Kewarganegaraan. Dalam penelitian ini, pengumpulan data dilakukan dengan menggunakan pendekatan yuridis normatif yaitu penelitian kepustakaan (library research) dengan mengkaji peraturan perundang-undangan, dan teori-teori hukum yang berhubungan dengan permasalahan yang dibahas dan tujuan dari penelitain ini adalah untuk mengetahui akibat hukum pewarisan tanpa wasiat atas tanah hak milik yang diperoleh anak di bawah umur berkewarganegaraan ganda dan untuk mengetahui perlindungan hukum bagi anak di bawah umur berkewarganegaraan ganda yang memperoleh tanah hak milik berdasarkan pewarisan tanpa wasiat. / Accordance to Positive Law allows, only Indonesian citizen possessing on free hold title land (tanah hak milik). Foreigner who possess free hold title land due to inheritance without a will or mixture of properties due to marriage, Indonesian citizen who has free hold title land and then lose their nationality, mandatory to release the right in one year since it was acquired or since losing their citizenship. If after the past period of time the ownership rights have not been released, then the right shall be void by law and the land shall be owned by the state (country). But if underage dual citizen got free hold title land by inheritance without a will. This is still not regulated further, when in one side that child has right to inherit upon the land and the other side, his dual citizenship is acknowledged and regulated in citizenship Law. In this research, Data Collected is done by a normative juridical approach, namely library research by reviewing legislation and legal theories related to the issued discussed, so on the purpose of this research are to find out the consequences inheritance right without a will on free hold title land inherited by an underage dual citizen and to find out the legal protection for an dual underage dual citizen who possess a free hold title land by inheritance without a will.