This report gives the meaning and basic characteristics of science-intensive industries，and proposes that under the background that the Guangdong-Hong Kong-Macao Greater Bay Area has become a major national development strategy，the creation of science-intensive industries will help better reflect the status of the Guangdong-Hong Kong-Macao Greater Bay Area as an international technological innovation center and provide sustained development momentum for the high-quality economic development of the Guangdong-Hong Kong-Macao Greater Bay Area. At the same time，it introduces the necessity and basis for the development of the industry in the Greater Bay Area，and gives basic development ideas and policy recommendations for the development of the industry in the Guangdong-Hong Kong-Macao Greater Bay Area.