The digital economy represents the mainstream of a new round of technological revolution and industrial transformation. Promoting the healthy development of the digital economy reflects the inherent requirements of the new development concepts，and provides important support for building a new development pattern and promoting high-quality development in the new development stage. Under the new domestic and international situation，the development of the digital economy faces many challenges such as technology，capital，talents，supervision，and security. In order to meet the challenges，we should start from the perspectives of building a modern digital industry system，accelerating the digital transformation of the industry，improving the talent training system，the data element flow system，and the digital economy governance system，so as to promote the sustainable and healthy development of digital economy.