The development，core issues in addition to main claims by lead participants in the United Nations Climate Change Conference Copenhagen 2009 indicate that the fundamental interest of each participant varies on the issues of reduction of greenhouse gas emissions，which is closely related to climate change. In practice，the international climate governance advocated by the Copenhagen Conference 2009 needs to be in consistent with Asian-Pacific regionally specific energy endowment and supply-demand structure，which is unlikely to be changed by political decisions.