"Money laundering" refers to the process of transforming illegal gains into "legal property" through financial or other institutions. On the one hand, through money laundering, organized crime covers up the traces of its criminal activities and can "properly enjoy" the proceeds of crime; On the other hand, money laundering provides funds for criminal groups to intervene in legitimate enterprises, enabling them to "cover up illegality with legality" and constantly expand their criminal power.

Money laundering is a serious economic crime, which not only undermines the principle of fairness and justice in economic activities, orderly competition in market economy, the reputation and normal operation of financial institutions, but also threatens the security and stability of the financial system. In addition, money laundering is linked to serious criminal crimes such as drug trafficking, smuggling, terrorist activities, corruption and tax evasion, which poses a serious threat to a country's political stability, social stability, economic security and the security of the international political and economic system.