Guangdong-Hong Kong-Macao Greater Bay Area is an area where the development of China’s theme park industry started earlier，with the most complete industrial system，and the most concentrated brands and headquarters. It is also the area with the most mature development of theme park industry in China. In recent years，the theme park industry in Guangdong-Hong Kong-Macao Greater Bay Area is facing many challenges. The theme parks in the Yangtze River Delta have gathered in scale，and the international theme park brands have entered the China Great Bay Area. The development of the national brand theme park in the China Great Bay Area still needs innovation. This paper reviewed and reflected on the history of the theme park industry in the China Great Bay Area，analyzing the major development opportunities faced by the regional theme park industry，reexamined the current and future pattern，and looked at the future from the perspective of development. Result indicates that the industrial chain of the theme park in the China Great Bay Area is still imperfect，high-end manufacturing and high-value-added formats are still lacking；the development of theme parks still lacks the overall planning and supporting formats required by the destination system；the multi-level theme park system in China Great Bay Area has initially formed，but there is still a lack of overall planning and brand cultivation；there are still speculative risks in the capital logic behind the theme park development lack of market rationality. The study further believes that the integration，coordinated development of the Guangdong-Hong Kong-Macao Greater Bay Area will bring two major opportunities to the theme park industry in the Greater Bay Area：one is the interconnected high-quality of life and tourism circle will promote the market integration of the theme park；the other one is the industrial value chain sharing the interests of Guangdong，Hong Kong and Macao will enhance the competitiveness of the theme park.