Launched by the "the Belt and Road" international scientific organization alliance, and guided by the Ministry of Science and Technology, the Chinese Academy of Sciences, the Chinese Academy of Engineering, and the Chinese Association for Science and Technology, the 2023 Great Bay Area Science Forum hosted by the People's Government of Guangdong Province was held in Nansha, Guangzhou, from May 20 to 23. Among them, the 2023 Greater Bay Area Science Forum's Guangdong Hong Kong Macao Science and Technology Innovation and Development Sub Forum was successfully held in Shenzhen on May 20th. The forum aims to focus on the integrated development of technology and industry, build new bridges and platforms for Guangdong Hong Kong Macao technology innovation and achievement transformation, share new opportunities for Guangdong Hong Kong Macao cooperation and development, and contribute to the technological innovation and industrial development of the Bay Area. Liang Zhenying, Vice Chairman of the CPPCC National Committee, Bai Chunli, Chairman of the the Belt and Road International Science Organization Alliance (ANSO), Chairman of the Dawan Science Forum, and academician of the CAS Member, Yin Hao, member of the Party Leadership Group of the Chinese Association for Science and Technology, Secretary of the Secretariat and Curator of the Chinese Science and Technology Museum, and Qin Weizhong, Deputy Secretary of the Shenzhen Municipal Party Committee and Mayor, attended the event and delivered a speech. The Chief Executive of the Hong Kong Special Administrative Region, Li Jiachao, delivered a video speech. More than 300 people from multiple universities, research institutions, central enterprises, technology enterprises, and media representatives from Guangdong, Hong Kong, and Macao participated in this forum. Liang Zhenying stressed in his speech that the construction of the Guangdong Hong Kong Macao Greater Bay Area is the key support for China's self-reliance in high-level science and technology. He hoped that scientists and compatriots would work together to scale the scientific peak, seek innovative development, and strive to build the Guangdong Hong Kong Macao Greater Bay Area into a global scientific and technological innovation highland, a strategic fulcrum of a new development pattern, a demonstration site for high-quality development, and a leading place for Chinese path to modernization. Li Jiachao pointed out in his video speech that the SAR government announced the blueprint for the development of innovation and technology in Hong Kong at the end of last year, setting a clear direction for the development of innovation and technology. The key strategy of the blueprint is to deepen technological cooperation with the mainland and better integrate into the overall development of the country. The Guangdong Hong Kong Macao Greater Bay Area is an excellent platform for Hong Kong to integrate into the overall development of the country. The 14th Five Year Plan of the country clearly supports the construction of an international innovation and technology center in Hong Kong. For the first time, Shenzhen Hong Kong Hetao has been included in the major cooperation platform of the Guangdong Hong Kong Macao Greater Bay Area. The cooperation zone will gather global talents and contribute to the high-level opening up of the Greater Bay Area to the outside world. Yin Hao stated in his speech that technological innovation is an important engine for the economic development of the Bay Area. With the joint efforts of various sectors in Guangdong, Hong Kong, and Macao, the Greater Bay Area has attracted numerous top technological talents from both China and the world. This forum provides a platform for science and technology workers from Guangdong, Hong Kong, and Macao to enhance understanding, exchange, and cooperation. It will play a positive role in promoting the continuous cohesion of new consensus, stimulation of new forces, and shared innovation landscape in the Greater Bay Area's scientific and technological innovation. Bai Chunli proposed in his speech that the Greater Bay Area has rich scientific and technological education resources, excellent scientific and technological leading talents, complete scientific and technological infrastructure, and a good scientific and technological innovation environment, providing broad space and opportunities for scientific and technological innovation and cooperation. He said that this forum should be used as an opportunity to further leverage the technological innovation advantages of the Greater Bay Area, stimulate the innovation vitality of Guangdong, Hong Kong, and Macao, build a bridge of communication and cooperation between science and industry, and promote cross domain and cross regional scientific and technological exchanges and collaborative innovation to a new level. In his speech, Qin Weizhong pointed out that deep