Nikah sirri formal judicial no legal basis, although in practice a lot happening in the middle of indonesia society. problematic issue that arises is the legal status of wives and children who were born because they have no authentic evidence of formal as husband and wife in the state admitted. it is essential to find solutions to find a way out of these problems especially in the protection of children from the marriage sirri wife, such a marriage tajdidun, confirmation of marriage, and for prevention by providing legal sanction