The total area of China is various types of nature reserves accounts for 18% of the country is land and land area.It has achieved the goal of 17%  of the protected areas by 2020 set by the United Nations Convention on Biological Diversity in advance.China is establishment and improvement  of the ecological protection red line system will help to link ecological corridors and connect protected areas.It is of great significance to biodiversity conservation and has set a good example for the development and utilization and has set a good example for the development and utilization of territorial space for all countries.