Guangdong-Hong Kong-Macao Greater Bay Area's economic strength ranks first in the China Bay Area. Guangdong-Hong Kong-Macao Greater Bay Area has a high population density. Nine cities in the Pearl River Delta of Guangdong, Hong Kong and Macao have entered a relatively mature stage, and the elements of scientific and technological development are all-round, including strong high-tech, traditional manufacturing and service industries. From the perspective of coverage, development level and economic relations, the Pearl River Delta Bay Area urban agglomeration is most suitable to be named "Bay Area Economy". The country named the Pearl River Delta as "Bay Area" for the first time, which has great practical and far-reaching significance.

Guangdong-Hong Kong-Macao Greater Bay Area is highly concentrated in resources such as industry, logistics, science and technology, finance and trade. To build a world-class metropolitan area with comprehensive competitiveness and become an important economic, financial, trade and high-tech industrial base in China and even in the world.

Guangdong-Hong Kong-Macao Greater Bay Area has formed the Greater Bay Area of "Finance+Technology+Industry", covering almost all industrial types in new york Bay Area, San Francisco Bay Area, Science and Technology Bay Area and Tokyo Bay Area.