In recent years, the new generation of digital wave led by cloud computing, big data, artificial intelligence and other technologies is surging. In the face of the complex and changeable external environment and the new normal of epidemic prevention and control, many offline scenes such as production, life and government affairs have been moved online at an accelerated pace. Digital transformation has pressed the "acceleration key". The depth and breadth of digital technology applications have been expanding. New technologies, new business types and new models have emerged one after another. Digital economy has become a new economic form following agricultural economy and industrial economy. Statistics show that the scale of China's digital economy will exceed 45 trillion yuan by the end of 2021, accounting for 39.8% of GDP. The digital economy has developed into the "half of the country" and the main growth point of China's economy. It should be pointed out that the development of the digital economy is not "competing" with the real economy. The manufacturing industry has always been the pillar of the national economy, the foundation of building a country, the instrument of rejuvenating the country, the foundation of strengthening the country, and the main battlefield of the digital economy. The strategic deployment to promote the integrated development of digital economy and real economy proposed in the report of the 20th National Congress of the Communist Party of China means that the real economy should be the main direction and key breakthrough of the "second half" of digital economy. In fact, the development of digital economy not only helps to open up the upstream and downstream of the manufacturing supply chain, numerous links of the industrial chain and various nodes of the service chain, accelerate the promotion of industrial digital transformation and upgrading, but also can continuously optimize business processes, continuously reduce production and transaction costs, and fundamentally achieve efficiency, power and quality changes. It should also be noted that the new generation of information technology will help to continuously enrich and expand the digital application scenarios in various industries and fields of the economy, thus catalyzing the "digital butterfly change" in the traditional manufacturing industry. In this sense, it can be said that the development of digital economy is a strong support for the transformation and upgrading of the real economy. It can be seen that the key point of developing the digital economy is to "promote reality with numbers". In other words, it is necessary to take digitalization, networking and intelligence as the starting point, fully tap the mechanism of data elements to enable high-quality development of digital economy, accelerate the dual wheel drive of digital industrialization and industrial digitalization, and create a large number of digital industrial clusters with considerable international influence and competitiveness. In the new era and new journey, we should make full use of the key historical window period, take "promoting reality with numbers" as the focus of high-quality development of the digital economy, give new meaning to the real economy in the process of Chinese path to modernization, comprehensively open a new blue ocean of digital transformation, and give new impetus to accelerate the construction of a new development pattern and promote high-quality development. Consolidate the base point of digital industrialization. We will develop electronic information manufacturing, information communication, software services, the Internet and other core industries of the digital economy