Building an ecological civilization and a beautiful China is a long-term mission with a strong bearing on people's well-being and the future of the Chinese nation. It is an active response to the existing grave ecological situation, and an important component for building a clean and beautiful world. This book chronicles the history of China's building of an ecological civilization, expounds new thoughts and new philosophy on ecological civilization, and explains how China promotes a green, low-carbon and circular development, implements ecological restoration and protection, and participates in global environmental governance. 建设生态文明，建设美丽中国，既是关系人民福祉、民族未来的长远大计，也是对当下严峻生态形势的积极应对，还是共建清洁美丽世界的重要组成部分。本书主要介绍中国生态文明建设的历程、生态文明新思想新理念，描述中国如何推动绿色低碳循环发展、推进生态修复和生态保护、参与全球生态环境治理等。