The digital economy is an emerging economic form in today's world, and it is a major economic form after the agricultural and industrial economies. Digital economy is an economic activity supported by digital technology, which includes a variety of digital industries and digital services, such as e-commerce, mobile payment, cloud computing, the Internet of Things, big data, artificial intelligence and so on. The development of digital economy not only brings new economic growth points, but also changes people's production, consumption and lifestyle, and at the same time has a profound impact on the traditional industries and economic model.

The development of digital economy is characterized by the following features:

1. High-speed growth: the growth rate of the digital economy far exceeds that of the traditional economy, and it has become an important driving force for global economic growth.

2. Industrial integration: the wide application of digital technology has promoted the integration of various industries and formed a new industrial ecosystem.

3. Innovation-driven: the digital economy relies on technological innovation to drive the emergence of new business models, products and services.

4. Globalization: The digital economy is global and interconnected, promoting the integration and digitization of the global economy.

Therefore, the digital economy has become one of the major trends in the world's economic development today, and plays an important role in promoting global economic growth, innovation and social development.