The article deals with a legal problem such as a legal gap, in particular unconstitutional legislative omission. Georgian legislation does not recognize unconstitutional legislative omission, although examples of such shortcomings can be found here. This article focuses on the Article 7(3) of the Constitution of Georgia, which requires the adoption of a constitutional law on the Autonomous Republic of Abkhazia, although this requirement has not been fulfilled for almost twenty years. The article shows the large vacuum related to the constitutional regulation of the Autonomous Republic of Abkhazia, and negative consequences related to it. The article also reviews the approach of several countries to unconstitutional legislative omission and expresses an opinion on resolving this problem in the Georgian reality.