This open access book records major environmental green development ideas based on mainstream of China’s policy reform collecting from ten major subjects from all study group. It focuses on the progress of China’s environment and development policies from 2023’s study accomplishments. It is mainly a reference of providing environmental policy recommendations for policy makers of China and beyond. In 2024, the world economy is still on the way to recovery. Making peace with nature is the only way to get back on the right track of sustainable development. The year of 2023 also marks an important year for China to implement at its 14th Five-Year Plan. As an annual publication, this book is based on the research outputs of CCICED in 2023. Those researches include carbon neutrality, blue economy, collaborative mechanism, watershed management and climate adaptation, BRI green development, sustainable supply chain, sustainable investment, reshaping land use, and innovative technologies for greenhouse gas, etc.