This report traces the journey and partnership of the People’s Republic of China (PRC) and the Asian Development Bank (ADB) over the past decade in four areas: environmental protection and ecological conservation, rural economy, green livable cities, and climate change mitigation and adaptation. It highlights how the green development partnership between the PRC and ADB has evolved over the years. Best practices, innovations, and lessons learned offer insights for ADB, its developing member countries, and other development partners. The report also presents forward-looking directions for further collaboration by the PRC and ADB in pursuit of a more sustainable future.