This book mainly answers the basic basis for socialism with Chinese characteristics to enter a new era, clarifies the main connotation and basic characteristics of the new era of socialism with Chinese characteristics, reveals the international significance and political advantages of socialism with Chinese characteristics in the new era, and points out the new era of socialism with Chinese characteristics. The nature and historical role of Chinas great social transformation, and analyzes the strategic opportunities faced by the new era and the major problems to be solved. This book has both theoretical depth and practical breadth, both realistic analysis and historical review. It not only grasps the changes in the world but also stays close to Chinas reality. .