The classic and most effective means for combating crime are the confiscation of the assets obtained from an offense and the imposing of the confiscation as a sanction at the end of the proceedings. However, the values obtained from criminal offenses are usually concealed, hidden or transformed by offenders. More importantly, the connection of assets with the relevant offense is broken through transferring them to a third party or the economic system. In this way, traces are blurred and thus confiscation is hindered. The criminal offense "money laundering" (the laundering of the assets acquired from a criminal offense, art. 282 TPC) is intended to prevent the possibility of cooperation between third parties and perpetrators for this purpose. Within the scope of this study, firstly the relevant international regulations are mentioned. Then a brief introduction to the historical development of the regulations on money laundering in Turkish law is given. After then, the administrative preventive measures and the administrative offenses against money laundering are presented, and finally the offenses for the prevention of money laundering are dealt with.