This book covers a wide range of environmental topics including the "Belt and Road" ecological environment cooperation, China's five-year plan for ecological environmental protection, air-water-soil pollution prevention and control action plan, sustainable development goal assessment, urban and rural ecological environmental protection, biodiversity protection, human health loss assessment and many other fields and directions. These achievements have played an important scientific supporting role for China's ecological environment protection in the past and produced extensive social impact and significant environmental benefits. At the same time, the relevant research ideas and methods also show the latest developments and trends in the field of environmental strategy and planning in China in recent years, which can be references for scholars working in the field of ecological environment in various countries.