“New quality productivity” is an important term put forward by General Secretary Xi Jinping in September 2023 during his visit and research in Heilongjiang. It is a form of productivity relative to traditional productivity, characterized by high technology, high energy efficiency and high quality, with science and technology innovation as the core driving force, and with a wide range of permeability and integration. To develop new quality productivity, it is inseparable from scientific and technological innovation and the development of new industries. Digital economy and intelligence are important paths to develop new quality productivity. The purpose of this paper is to explore the path and its impact of digital intelligence innovation on productivity enhancement in the Greater Bay Area from a multi-dimensional perspective. The study first starts with the policy environment, outlines the policy background of the Greater Bay Area, comprehends the formation and development of the digital economy, and analyzes in depth how policies promote digital innovation. On this basis, the paper explores the specific impact of digital intelligence innovation on productivity and its path from three perspectives: technological, social and cultural. Under the technological perspective, this paper focuses on the technology-driven mechanism of digital intelligence innovation, including its direct impact on the optimization of industrial structure and productivity enhancement, and analyzes in detail the breakthroughs in major technological fields and their role in promoting the regional economy. Through technological innovation cases, it demonstrates how digital innovation can enhance productivity at the technological level and inject new vitality into the economy of the Greater Bay Area. The social perspective focuses on how digital intelligence innovation can enhance social governance, drive social benefits and public services, and explore the role of digital intelligence innovation in promoting social inclusion and narrowing the digital divide. By analyzing the specific practices and effects at the social level, it reveals the important role of digital intelligence innovation in social development. The cultural perspective analyzes the integration of digital intelligence innovation with regional culture and explores its role in promoting the cultural industry. It demonstrates the specific practices of the integration of culture and technology through typical cases, emphasizes the importance of regional cultural identity and innovation atmosphere, and proposes how to further enhance the productivity of the Greater Bay Area through cultural innovation. In the comprehensive analysis section, this paper integrates the analysis results from various perspectives and proposes the future development trend of digital intelligence innovation and its long-term impact on productivity enhancement in the Greater Bay Area. Finally, based on the findings, this paper proposes a series of policy recommendations and optimization paths, including strengthening policy support, promoting technological research and development, and fostering social inclusiveness and cultural innovation, with a view to providing scientific references and practical guidance for the future development of the digital intelligence economy in the Greater Bay Area.