Paris Climate Change Conference was successfully concluded with the Paris Agreement, which is a milestone for the world in combating climate change collectively. Analysis of the author shows that by participating in IPCC assessments and conducting national climate change assessments, China has been increasing its understanding of the issue. It was the first time that Chinas top leader attended the conference for the Parties, which indicated the acknowledgement of the rationality and necessity of climate change response by China at different levels. That also reflected the commitment of China to including climate change in its ecology improvement program and pursuing a low-carbon society and economy. To ensure the success of the Paris conference, China made big efforts. Such an example of Chinas constructive participation in the global governance shows that China is a responsible power. These principles, such as to create a future of win-win cooperation, with each country making contribution to the best of its ability, a future of the rule of law, fairness and justice, and a future of inclusiveness, mutual learning and common development, will serve as Chinas guidelines for its efforts to facilitate the implementation of the Paris Agreement and participate in the design of international systems.