Money laundering and financing of terrorism presents a large threat, not just for one country, but for the whole world. Despite using many controls, security and tax methods, this form of criminal activity shows a serious threat for the security and complexity of the whole financial system. Money laundering shows all illegal activities which have been used to cover up the real reason for loosing money or other assets, which is doubted that have been acquired in an illegal matter in some country or abroad. Fight against money laundering and financial terorrism is a very complex and challening matter which requires international coopeartion and constant raise of awareness how it is a big felony. Money laundering and financing of terrorism are close related, because illegaly gained money or assets are used for financing terroristic activities by terrorists or terroristic organizations. Unlike money laundering which is always acquired in illegal afairs, financing terrorism can be done from income which is gaind in legal way and that significantly difficultes at detecting this criminal offence. In RH suppression of money laundering and financing terrorism is organized in a system where there is not only one amenable institution, rather it is mutual interaction between internation standard and leagal payers of RH. Payers who conduct Law of preventing money laundering and financing terrorism are: banks, insurance companies, lawyers, public notary, and others. Body of surveillance who monitors payers are: Croatian national bank, HANFA, tax administration, customs administration and Financial inspectorate of RH. Body of prosecutions are: the police, State Attorney and others, while criminal proceedings are being conducted through the judiciary for this criminal offense and forfeiture of the gains gained in this way. The Office is established by Law of preventing money laundering and financing terrorism and it is recived from the side of Ministry of Finance as a special unit which is completely independent and annonymous in its treatment. Further more it needs to improve certitude for future current dangers from money laundering and financing terrorism in RH, advance in finding the most suitable solution, so that the body that provides Law as are DORH, the police and others continue implement the same by their rights which have been given to them from the Office, and continue the cooperation between them.