This book systematically summarizes the typical facts of the emergence and development of the digital economy, and studies the reasons, current situation and impact of the development of Chinas digital economy, which is of great practical significance to the sustainable and stable development of the Chinese economy. The research report mainly includes nine main parts, namely : Development of global digital economy, development of Chinas digital economy, digital economy and industrial upgrading, digital economy and trade, digital economy and investment, digital economy and finance, digital economy and labor market, digital economy and global governance, and developing Chinas digital economy policy recommendations.