To achieve high-quality development in the Guangdong Hong Kong Macao Greater Bay Area, it is necessary to seize the opportunities of the digital economy and take the lead in establishing a high-level digital bay area. The fundamental aspect of the construction of the Digital Bay Area lies in embedding data elements into various aspects of social development, providing new impetus for digital innovation and development. Currently, the digital economy is becoming a key force in restructuring global factor resources, reshaping the global economic structure, and changing the global competitive landscape. To achieve high-quality development, the Guangdong Hong Kong Macao Greater Bay Area must seize the opportunities of digital technology research and development, digital economy, and take the lead in establishing a high-level digital bay area. The foundation of the construction of the Digital Bay Area lies in embedding data elements into various aspects of social development, providing new impetus for digital innovation and development. With the release of the "Three Year Action Plan for the Construction of the Digital Bay Area" by the General Office of the People's Government of Guangdong Province in November last year, it marks the comprehensive implementation stage of the construction of the digital bay area, and the significance of the construction of the digital bay area is further highlighted. Nowadays, digitalization is leading a new round of industrial transformation. On the one hand, the well-established information technology industry has supported the Pearl River Delta to take the lead in the development and continuous breakthrough of digital industries such as artificial intelligence, big data, industrial Internet, cloud computing, etc. On the other hand, the transformation and upgrading of traditional manufacturing industry has unleashed enormous demand potential, creating huge market momentum for the development of digital industry and digital technology progress. Meanwhile, digital technology is widely applied in various key areas of production and life. The Pearl River Delta is cultivating and accelerating the establishment of an integrated digital commerce, digital industry, digital infrastructure, digital society, digital government, and digital science and technology innovation system. Especially in the field of life, Internet payment technology has been popularized in Guangdong, Hong Kong and Macao, further promoting people's livelihood connectivity. The new model of digital marketing has activated new commercial development spaces in the three regions, and the convenience of financial transactions such as personal account settlement and cross-border payments in the Greater Bay Area has also significantly improved. Smart transportation makes cities closer together and goods transportation more efficient. Hong Kong and Macao, with their outstanding advantages in finance, shipping, aviation, trade, international marketing, and relying on a highly recognized business environment and a good economic foundation, play the role of "super contacts", continuously enhancing the opening and development advantages of the Guangdong Hong Kong Macao Greater Bay Area, driving the Greater Bay Area to gather global high-end factors and integrate into the global economic network. The Pearl River Delta region is economically active and has a solid industrial foundation, especially with great potential and momentum in the digital economy. Through the construction of the Digital Bay Area, it will strengthen the comprehensive economic strength of the Guangdong Hong Kong Macao Greater Bay Area, gather new momentum in the digital economy, and better participate in global industrial division of labor and international competition. In the future, efforts need to be focused on the following aspects to build a digital bay area: supporting the coordinated development of the three regions in the Greater Bay Area with big data, and promoting digital government to assist urban governance. On the one hand, we will further promote the digitization, intelligence, and refinement of public services to facilitate the convenient and free flow of factors, and accelerate the construction of world-class urban clusters. Firstly, we will steadily promote the construction of cross domain and multi-dimensional big data cloud computing platforms, and make further efforts in the integration and interoperability of government data in the three regions, big data mining applications, data standard system construction, improvement of government information resource sharing directories, and privacy and security regulations for data sharing and exchange. We will strengthen the connection and formulate unified standards in digital information standardization, digital infrastructure, and other aspects to create a better environment