This is a literature review of money laundering, which discusses money laundering in Macau gaming industry particularly, and provides suggestions to antimoney laundering. Money laundering has become a worldwide problem. As reported by United Nations Office on Drugs and Crime (UNODC), the amount of money laundering is around $1.6 trillion per year or 2.7% of the Gross Domestic Product (GDP) in 2009. Money laundering is an activity that converts illegal earnings into legitimate money or other assets so as to obfuscate the origin of illegal money, facilitate the trade, and avoid suspicious of law enforcement agencies and bank surveillance. The thesis generalizes the concepts related to money laundering, including money launderer, consequence of money laundering, laundering methods, and identification of money laundering. Besides the anti-money laundering is also discussed, and global organizations and law enforcement for anti-money laundering are introduced. Macau, a special administrative region of China and a tiny area full of casinos, now is famous as the Monte Carlo of the Orient. With the rapid development of gaming industry, it has also became a hotbed for money laundering. Without blood or violence, money laundering is conducted stealthily. It is nibbling away the stability of Macau’s economic and society. This thesis is going to investigate the relationship between money laundering and gaming industry in Macau, especially the operation of VIP room.