This research discussed an oath of shroud ( sumpah pocong) as a decision oath in proving a case and emerging problem in oath implementation. The research concluded that the application of oath of shroud was an alternative used end a case after witness and letter proofs could not reach a judicial decision. However, a new problem will exist when the oath of shroud was false. since the decision oath was a unilateral statements, it could not be treated as an evidence. It was therefore suggested to exclude oath from article 164 of code of civil procedure.