The Indonesian Regional Representative Council (DPD) institution was formed to become a regional representative institution that aims to articulate regional interests in the context of decision-making at the national level. Expansion and merger of regions, management of natural resources and other economic resources, as well as those related to the balance between central and regional finances. The focus of this research study is what are the Implications of the Constitutional Court Decision on Strengthening the Legislative Function of the Regional Representative Council in the State Administration System of the Republic of Indonesia and How the Reconstruction of the Legislative Authority of the Regional Representative Council of the Republic of Indonesia is based on dignified justice. The paradigm used in the research is the post-positivism paradigm, where the type of research uses juridical-normative type of research, namely research that doctrinally examines the basis of rules and regulations regarding the Legislative Authority of the Regional Representative Council in the State Administration System of the Republic of Indonesia based on Dignified Justice, by conducting institutional analysis. people's representatives in legislative authority. The results of the research show that the DPD's authority in the field of legislation is indeed very weak, and efforts have also been made to strengthen it through the Constitutional Court, but the facts are still as before, therefore it needs to be rearranged through amendments to the 1945 Constitution, especially articles relating to authority. Regional Representative Council institutions, as well as regulations on the implementation of Constitutional Court Decisions, which in the end will manifest the authority of representative institutions based on Dignified Justice.