The development of digital economy is a strategic choice to grasp the new round of scientific and technological revolution and new opportunities for industrial reform. The report of the 20th National Congress of the Communist Party of China proposed to accelerate the development of the digital economy, promote the deep integration of the digital economy and the real economy, and build a digital industrial cluster with international competitiveness. This represents a grand blueprint for future development in order to further strengthen, optimize and expand the digital economy and enhance the surging momentum of digital economy development. We will strive to promote the deep integration of digital technology and the real economy. According to statistics, from 2012 to 2021, China's digital economy will grow from 11 trillion yuan to more than 45 trillion yuan, accounting for 39.8% of GDP from 21.6%, ranking second in the world for many consecutive years. New technologies, new formats and new platforms such as big data, cloud computing and artificial intelligence are booming. Application scenarios such as online and offline integration, telemedicine, and intelligent logistics have been fully rolled out. Digital technology is entering all aspects of production and life, becoming a "new field, new track", "new momentum, and new advantages" for China's economic and social innovation and development. The digital economy provides a key force for the "stable growth" of China's economy. In the face of complex and severe situations such as repeated global epidemics and intensified geopolitical conflicts, digital technology and digital economy have promoted the rapid flow of various resource elements, accelerated the integration of various market players, helped market players restructure their organizational models, achieved cross-border development, broke the time and space constraints, extended the industrial chain, smoothed the domestic and international economic cycle, and become the "accelerator" for China's economic recovery. The digital economy provides a new engine for China's economic restructuring. With the further promotion of digital industrialization and industry digitalization, digital economy plays an active role in promoting the transformation and upgrading of traditional manufacturing industry, realizing the precision of manufacturing services and digitalization of manufacturing process. With the wide application of e-commerce and mobile payment, China's online car hailing, online takeout, digital culture and other markets have taken the lead in the world in recent years, injecting strong momentum into the innovative development of the service industry. The digital economy provides an important guarantee for China's economic "transformation". The characteristics of digital economy, such as high innovation, strong penetration and wide coverage, have become an important integration point to promote the integration of digital economy and green development industries in China. In the past decade, driven by major projects such as "counting from the east to the west", China's digital infrastructure construction has continued to speed up. New applications, new scenarios, new models, and new business types based on digital have emerged one after another. The integration of "number" and "reality" is competing for new tracks. The construction of intelligent production lines, digital workshops, and smart factories has strongly promoted the all-round and full chain digital transformation of traditional manufacturing, service industries, agriculture, and other industries, It provides important support for accelerating the realization of quality change, efficiency change and power change. Looking at the world, the Internet, big data, cloud computing and other technologies are accelerating innovation and are becoming a global element resource for restructuring