Number of legal casinos in mainland China:hyesung shinhwa gambling HOW TO BEAT NO ZERO ROULETTE Gambling in China is officially illegal under Chinese law. In practice, however, Chinese people Jump up ^ Wynn K; Jump up ^ "Macau Gaming Summary". University of Nevada, Las Vegas Center for Gaming Research. Retrieved 7 Mainland China · Hong Kong · Macau. Top China Casinos: See reviews and photos of casinos & gambling attractions in China on TripAdvisor. Macau, the world's largest gaming center, is the only Chinese territory where casinos are allowed to operate. Regulation there is tightening.