The purpose of this study is to analyze and find: first, the system of eradicating corruption in Indonesia's current positive law; second, the Indonesian government's strategy to eradicate corruption in the future; and third, the concept of Integrity System to eradicate corruption in investigations conducted by the Prosecutor's Office, Police and KPK in Indonesia. The research method used is normative juridical law research using a statutory and conceptual approach. The results of the study concluded first, the system of eradicating corruption in Indonesia's positive law currently places the KPK as the leader, causing disharmony among law enforcement; second, the Indonesian government's strategy to eradicate corruption in the future can be carried out through an integrity system within the kpk, police and prosecutors; third, the concept of integrity system of corruption in the investigation by the Prosecutor' s Office, Police and KPK is carried out by establishing an Integrity Court, this integrity system should be able to position these three institutions into an independent Anti-Corruption Agency