Macau’s gamig industry has been opened for international operators for more than 10 years. The opening has brought great development to Macau. The most important contributions of the industry after opening are in increasing government tax revenue, more employment opportunities for residents and higher income for casino employees. But two most important objectives of opening market have failed to come true. The development of the gaming industry failed to bring along the development of other industries and to help diversify Macau’s economy. Macau has to realy more on gamging industry for its GDP and government tax revenue, and the whole sale, retail and food and beverage industries which are believed most likely to benefit from the growth of the gaming don’t show better growth results than these industries in Mainland China which had no gaming industry. The main causes of the failure can be traced to the defects in government management, which include lacking strategic planning for the industry, failure to take measures to put the goals into reality and lacking performance evaluation mechanism. As Macau’s gaming industry is facing ever more fierce competition from neighbouring countries or areas, Macau government needs to improve its governace in order to enhance competitiveness of the industry.