The existence of rules limiting the cassation becomes an obstacle for the public to obtain justice and is not in accordance with the principles of the state of Indonesia as a state of law which is stated in the provisions of the 1945 Constitution of the Republic of Indonesia in Article 28D. Problem: Is the limitation of cassation in Article 45A of the Supreme Court Law in accordance with the provisions of the 1945 Constitution and the Criminal Procedure Code. This research is a normative research method with a statutory approach and a conceptual approach as well as prescriptive analysis techniques. The cassation legal effort should return to its basic purpose, namely maintaining legal uniformity and unity and providing justice for the community.