As an economic concept, the digital economy is an economic form in which human beings can guide and realize the rapid optimal allocation and regeneration of resources and high-quality economic development by identifying, selecting, filtering, storing and using big data (digital knowledge and information).

Digital economy is not equal to virtual economy, and the popular saying about digital economy is "digital industrialization"+"industrial digitalization". Since human society entered the information age, the rapid development and wide application of digital technology gave birth to the digital economy.

Different from the agricultural economy in the farming era and the industrial economy in the industrial era, the digital economy is a new economy, new kinetic energy and new format, which has triggered profound changes in the whole social economy.

At present, digital technology, goods and services are not only infiltrating into traditional industries in multiple directions, levels and chains, that is, industry digitalization; Moreover, it is promoting the continuous development and growth of digital industrial chains and industrial clusters such as Internet data center (IDC) construction and services, that is, digital industrialization.

The new infrastructures such as 5G network, data center and industrial Internet that China is making great efforts to build are essentially digital economic infrastructures around new technology industries. Digital economy has become a new engine to drive China's economy to achieve sound and rapid growth, and various new formats spawned by digital economy will also become a new important growth point of China's economy.