This book takes an in-depth look at China's diplomacy in the New Era under the leadership of Xi Jinping. It begins with the analysis of China's rise and world transformation, the connotations of China's New Era and its new world ideal as "Community of Shared Future for Mankind" and then presents Xi Jinping's grand strategy by analyzing his new ideas on the governance of China and global governance, theory and practice of China's diplomacy in the New Era. Key concepts and innovation cases in China's diplomacy around security, BRI, opening-up strategy, and its strategic approach to the USA are introduced as well, which builds an overview of China's diplomacy.