In 2021，the overall growth rate of China’s digital economy has accelerated significantly due to the slow recovery of the macro economy. Its proportion in GDP has further increased to 39.8%. At the same time，the quality and scale of the digital economy have developed simultaneously，new growth points have emerged in the intelligent manufacturing industry，and the growth rate of e-commerce transactions has reached a new high in recent years. In addition，the digital spillover effect of core urban agglomerations was significant，and the leading effect of first-tier cities remains unabated. In terms of innovation achievements，innovation investment and PCT patent applications have maintained continuous growth，and the ranking of leading companies in the international innovation field has risen. In terms of digital governance，the “Data Security Law” and the “Personal Information Protection Law” have been implemented successively，and the digital governance legal and regulatory system has been further improved. Affected by the technological strategic layout of the Biden administration and the long-term impact of COVID-19 epidemic，China’s digital economy supply chain is facing severe challenges. Also，emerging technology application scenarios will become the key to the improvement of the conversion rate of economic effects in the future，and the research and upgrading of the digital economy governance system is urgent.