The development of the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) has been part of various key national strategies, including the Vision and Actions on Jointly Building the Silk Road Economic Belt and 21^st Century Maritime Silk Road, and the 13^th Five-Year Plan. Under the witnessed of President Xi Jinping, the National Development and Reform Commission and the governments of Guangdong, Hong Kong and Macao signed in 2017 the Framework Agreement on Deepening Guangdong-Hong Kong-Macao Cooperation in the Development of the Greater Bay Area in Hong Kong, setting out the goals and principles of cooperation and establishing the key cooperation areas in the development of GBA.

The State Council promulgated the Outline of Development Plan for the Guangdong-Hong Kong-Macao Greater Bay Area on 18 February 2019, which not only set out the directions guiding the development of the area, but also supported Hong Kong in developing into an international metropolis with enhanced competiveness.